$FCBC
First Community Bankshares Inc Stock $fcbc

$fcbc Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000143774921005876 Filed on March 12, 2021

Income Statement

Concept	2019 Q4	2019 Q3	2019 Q2
Revenue	$23.37M	$23.61M	$24.38M
YoY Change	-7.92%	-2.8%	0.35%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.210M	$1.170M	$1.080M
YoY Change	28.72%	20.62%	11.34%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$1.313M	$1.384M	$1.393M
YoY Change	-12.58%	-29.42%	-31.55%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$12.40M	$11.74M	$13.40M
YoY Change	4.16%	14.86%	15.87%
Income Tax	$2.833M	$2.580M	$2.951M
% Of Pretax Income	22.85%	21.98%	22.02%
Net Earnings	$9.564M	$9.156M	$10.45M
YoY Change	2.77%	0.62%	15.28%
Net Earnings / Revenue	40.92%	38.79%	42.86%
Basic Earnings Per Share	$0.61	$0.59	$0.67
Diluted Earnings Per Share	$0.61	$0.58	$0.66
COMMON SHARES
Basic Shares Outstanding	15.61M	15.60M	15.71M
Diluted Shares Outstanding	15.67M	15.66M	15.78M

Balance Sheet

Concept	2019 Q4	2019 Q3	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$217.0M	$182.5M	$156.5M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$62.82M	$48.52M	$48.26M
YoY Change	37.22%	6.55%	5.96%
Goodwill	$129.6M	$92.74M	$92.74M
YoY Change	39.7%	-1.64%	-3.17%
Intangibles	$8.519M	$4.280M	$4.532M
YoY Change	69.5%	-20.24%	-19.47%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.799B	$2.205B	$2.212B
YoY Change	24.71%	-2.85%	-5.8%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$37.50M	$28.10M	$26.30M
YoY Change	42.05%	11.07%	-0.38%
Accrued Expenses	$1.000M	$900.0K	$900.0K
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$1.601M	$1.900M	$3.100M
YoY Change	-94.55%	-93.71%	-88.89%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$38.50M	$29.00M	$27.20M
YoY Change	45.83%	14.62%	3.03%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$0.00	$0.00	$0.00
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities	$38.50M	$29.00M	$27.20M
Total Long-Term Liabilities	$0.00	$0.00	$0.00
Total Liabilities	$2.370B	$1.868B	$1.878B
YoY Change	23.99%	-3.29%	-6.5%
SHAREHOLDERS EQUITY
Retained Earnings	$219.5M	$213.9M	$208.6M
YoY Change	12.13%	12.62%	13.21%
Common Stock	$18.38M	$15.58M	$15.63M
YoY Change	14.81%	-27.13%	-26.89%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$428.8M	$337.4M	$333.7M
YoY Change
Total Liabilities & Shareholders Equity	$2.799B	$2.205B	$2.212B
YoY Change	24.71%	-2.85%	-5.8%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2019 Q2
OPERATING ACTIVITIES
Net Income	$9.564M	$9.156M	$10.45M
YoY Change	2.77%	0.62%	15.28%
Depreciation, Depletion And Amortization	$1.210M	$1.170M	$1.080M
YoY Change	28.72%	20.62%	11.34%
Cash From Operating Activities	$17.02M	$14.19M	$11.36M
YoY Change	37.81%	-11.37%	10.18%
INVESTING ACTIVITIES
Capital Expenditures	-$2.180M	-$1.280M	-$3.320M
YoY Change	48.3%	82.86%	1176.92%
Acquisitions
YoY Change
Other Investing Activities	$33.81M	$31.34M	$41.37M
YoY Change	13.92%	-15.07%	-330.73%
Cash From Investing Activities	$31.62M	$30.07M	$38.05M
YoY Change	12.13%	-16.96%	-309.3%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-14.09M	-18.28M	-41.47M
YoY Change	-62.29%	-78.86%	-53.57%
NET CHANGE
Cash From Operating Activities	17.02M	14.19M	11.36M
Cash From Investing Activities	31.62M	30.07M	38.05M
Cash From Financing Activities	-14.09M	-18.28M	-41.47M
Net Change In Cash	34.55M	25.98M	7.940M
YoY Change	983.07%	-175.81%	-108.17%
FREE CASH FLOW
Cash From Operating Activities	$17.02M	$14.19M	$11.36M
Capital Expenditures	-$2.180M	-$1.280M	-$3.320M
Free Cash Flow	$19.20M	$15.47M	$14.68M
YoY Change	38.93%	-7.42%	38.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018	fcbc	Federal Deposit Insurance Corporation Premium Expense And Assessments FederalDepositInsuranceCorporationPremiumExpenseAndAssessments	906000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1096000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	69763000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	69773000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	46112000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	49796000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	45122000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10186000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1492000	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1893000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2124000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	12410000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	11929000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	12727000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	79625000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10994000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8782000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	35926000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	38802000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	36340000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.47
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.46
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17781748
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15690812
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16587504
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17815380
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15756093
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16666385
CY2020	us-gaap	Net Income Loss NetIncomeLoss	35926000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	38802000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	36340000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	689000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1414000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-2213000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	385000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-43000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-618000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	304000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	1457000	USD
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-1595000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1217000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1570000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	565000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-0	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	262000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	386000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	278000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	285000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	831000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	1554000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	507000	USD
CY2018	fcbc	Special Dividends Common Stock Cash SpecialDividendsCommonStockCash	8124000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-850000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-527000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-97000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-745000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-110000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-20000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-156000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-417000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-77000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-589000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35509000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	38725000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35751000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	350714000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	36340000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-589000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12966000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	1158000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	384000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	352000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	34412000	USD
CY2018	fcbc	Reclassification Of Treasury Stock ReclassificationOfTreasuryStock	0	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	332857000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	332857000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	38802000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-77000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	15060000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	1481000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	136000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	411000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	16362000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	86631000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	428819000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	428819000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	35926000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-417000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17876000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	1643000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	21872000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	426730000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	35926000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	38802000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	36340000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	12668000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3571000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2393000	USD
CY2020	us-gaap	Depreciation Nonproduction DepreciationNonproduction	4458000	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	3448000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2912000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1468000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-195000	USD
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-40000	USD
CY2020	fcbc	Fdic Indemnification Asset Accretion Amortization FDICIndemnificationAssetAccretionAmortization	1690000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	51027000	USD
CY2019	fcbc	Fdic Indemnification Asset Accretion Amortization FDICIndemnificationAssetAccretionAmortization	2377000	USD
CY2018	fcbc	Fdic Indemnification Asset Accretion Amortization FDICIndemnificationAssetAccretionAmortization	2181000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1450000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	997000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1039000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1492000	USD
CY2020	fcbc	Accretion On Acquired Loans AccretionOnAcquiredLoans	7991000	USD
CY2019	fcbc	Accretion On Acquired Loans AccretionOnAcquiredLoans	3231000	USD
CY2018	fcbc	Accretion On Acquired Loans AccretionOnAcquiredLoans	6391000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	1643000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	1481000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	1158000	USD
CY2020	fcbc	Issuance Of Common Stock To401k Plan IssuanceOfCommonStockTo401kPlan	507000	USD
CY2019	fcbc	Issuance Of Common Stock To401k Plan IssuanceOfCommonStockTo401kPlan	411000	USD
CY2018	fcbc	Issuance Of Common Stock To401k Plan IssuanceOfCommonStockTo401kPlan	352000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	59000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	75000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	25000	USD
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-319000	USD
CY2019	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1253000	USD
CY2018	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1313000	USD
CY2020	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	385000	USD
CY2019	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-43000	USD
CY2018	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-618000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	812000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	380000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1007000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1096000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-6662000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	7003000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	3974000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45844000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	56655000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	49499000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	13898000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	8937000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	44676000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	32863000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	68765000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	25000000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	10267000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	8255000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	67355000	USD
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	69259000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-85233000	USD
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-39512000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2020	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	12000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	458000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1997000	USD
CY2019	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-129000	USD
CY2018	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	2122000	USD
CY2020	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-0	USD
CY2019	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-25863000	USD
CY2018	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-10000	USD
CY2020	fcbc	Payments To The Federal Deposit Insurance Corporation PaymentsToTheFederalDepositInsuranceCorporation	30000	USD
CY2019	fcbc	Payments To The Federal Deposit Insurance Corporation PaymentsToTheFederalDepositInsuranceCorporation	152000	USD
CY2018	fcbc	Payments To The Federal Deposit Insurance Corporation PaymentsToTheFederalDepositInsuranceCorporation	151000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2861000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1955000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	955000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3195000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8411000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2551000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	3254000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2940000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	17798000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	171377000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	49398000	USD
CY2020	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	144927000	USD
CY2019	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	12604000	USD
CY2018	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	5407000	USD
CY2020	us-gaap	Net Change Interest Bearing Deposits Domestic NetChangeInterestBearingDepositsDomestic	71408000	USD
CY2019	us-gaap	Net Change Interest Bearing Deposits Domestic NetChangeInterestBearingDepositsDomestic	-41445000	USD
CY2018	us-gaap	Net Change Interest Bearing Deposits Domestic NetChangeInterestBearingDepositsDomestic	-79548000	USD
CY2020	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-637000	USD
CY2019	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-27769000	USD
CY2018	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-716000	USD
CY2020	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	-40000	USD
CY2019	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	0	USD
CY2018	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	-50000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	136000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	384000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21872000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16362000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	34412000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17876000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	15060000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	21090000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	175910000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-87896000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-179975000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	239552000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	140136000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-81078000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	217009000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	76873000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	157951000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	456561000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	217009000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	76873000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	5661000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	7935000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	5500000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8057000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7610000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	9074000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	695000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	3160000	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	5686000	USD
CY2020	fcbc	Loans Originated To Finance Other Real Estate Owned LoansOriginatedToFinanceOtherRealEstateOwned	266000	USD
CY2019	fcbc	Loans Originated To Finance Other Real Estate Owned LoansOriginatedToFinanceOtherRealEstateOwned	484000	USD
CY2018	fcbc	Loans Originated To Finance Other Real Estate Owned LoansOriginatedToFinanceOtherRealEstateOwned	164000	USD
CY2020	fcbc	Increase Decrease In Accumulated Other Comprehensive Income IncreaseDecreaseInAccumulatedOtherComprehensiveIncome	417000	USD
CY2019	fcbc	Increase Decrease In Accumulated Other Comprehensive Income IncreaseDecreaseInAccumulatedOtherComprehensiveIncome	77000	USD
CY2018	fcbc	Increase Decrease In Accumulated Other Comprehensive Income IncreaseDecreaseInAccumulatedOtherComprehensiveIncome	589000	USD
CY2020	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	1603000	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	556005000	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	506179000	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	49826000	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
CY2020	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	86631000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2020	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"><i>Reclassification</i></p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"> </p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;">Certain amounts reported in prior years have been reclassified to conform to the current year’s presentation. These reclassifications had <em style="font: inherit;">no</em> effect on the Company’s results of operations, financial position, or net cash flow.</p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"> </p>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"><i>Use of Estimates</i></p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"> </p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;">Preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that require the most subjective or complex judgments relate to fair value measurements, the allowance for loan losses and goodwill and other intangible asset. For additional information, see “Critical Accounting Policies” in Part II, Item <em style="font: inherit;">7</em> of this report.</p> <p style="font-family: "Times New Roman"; font-size: 10pt; margin: 0pt; text-align: justify;"><b><i> </i></b></p>
CY2020	fcbc	Minimum Principal Balance Of Loans For Quarterly Rating Review MinimumPrincipalBalanceOfLoansForQuarterlyRatingReview	500000	USD
CY2020Q4	fcbc	Restructured Loans Reserves RestructuredLoansReserves	500000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P10Y
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	145656000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	43463000	USD
CY2020Q4	fcbc	Financing Receivable Number Of Payment Deferrals FinancingReceivableNumberOfPaymentDeferrals	3625	pure
CY2020Q4	fcbc	Financing Receivable Deferred Payments FinancingReceivableDeferredPayments	458170000	USD
CY2020Q2	fcbc	Financing Receivable Deferred Payments FinancingReceivableDeferredPayments	436110000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	150618000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	42470000	USD
CY2018Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1490000	USD
CY2020Q4	fcbc	Disposal Group Including Discontinued Operation Assets Sold Acquired DisposalGroupIncludingDiscontinuedOperationAssetsSoldAcquired	0	USD
CY2019Q4	fcbc	Disposal Group Including Discontinued Operation Assets Sold Acquired DisposalGroupIncludingDiscontinuedOperationAssetsSoldAcquired	0	USD
CY2018Q4	fcbc	Disposal Group Including Discontinued Operation Assets Sold Acquired DisposalGroupIncludingDiscontinuedOperationAssetsSoldAcquired	-1685000	USD
CY2020Q4	fcbc	Disposal Group Including Discontinued Operation Liabilities Sold Incurred DisposalGroupIncludingDiscontinuedOperationLiabilitiesSoldIncurred	0	USD
CY2019Q4	fcbc	Disposal Group Including Discontinued Operation Liabilities Sold Incurred DisposalGroupIncludingDiscontinuedOperationLiabilitiesSoldIncurred	0	USD
CY2018Q4	fcbc	Disposal Group Including Discontinued Operation Liabilities Sold Incurred DisposalGroupIncludingDiscontinuedOperationLiabilitiesSoldIncurred	37000	USD
CY2020	fcbc	Sales Price In Excess Of Net Liabilities Assumed SalesPriceInExcessOfNetLiabilitiesAssumed	-0	USD
CY2019	fcbc	Sales Price In Excess Of Net Liabilities Assumed SalesPriceInExcessOfNetLiabilitiesAssumed	-0	USD
CY2018	fcbc	Sales Price In Excess Of Net Liabilities Assumed SalesPriceInExcessOfNetLiabilitiesAssumed	-0	USD
CY2020	fcbc	Payments For Proceeds From Divestiture Of Businesses PaymentsForProceedsFromDivestitureOfBusinesses	0	USD
CY2019	fcbc	Payments For Proceeds From Divestiture Of Businesses PaymentsForProceedsFromDivestitureOfBusinesses	0	USD
CY2018	fcbc	Payments For Proceeds From Divestiture Of Businesses PaymentsForProceedsFromDivestitureOfBusinesses	-1648000	USD
CY2020	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
CY2019	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
CY2020Q4	fcbc	Contractual Maturities Time Deposits250000 Or More Six Months Through12 Months ContractualMaturitiesTimeDeposits250000OrMoreSixMonthsThrough12Months	9841000	USD
CY2018	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	35000	USD
CY2020	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	1603000	USD
CY2020	fcbc	Receivable Due From Payable Due To Divestiture Of Businesses ReceivableDueFromPayableDueToDivestitureOfBusinesses	0	USD
CY2019	fcbc	Receivable Due From Payable Due To Divestiture Of Businesses ReceivableDueFromPayableDueToDivestitureOfBusinesses	0	USD
CY2018	fcbc	Receivable Due From Payable Due To Divestiture Of Businesses ReceivableDueFromPayableDueToDivestitureOfBusinesses	0	USD
CY2020	fcbc	Payments For Proceeds From Divestiture Of Businesses Net Of Cash Divested PaymentsForProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2019	fcbc	Payments For Proceeds From Divestiture Of Businesses Net Of Cash Divested PaymentsForProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2018	fcbc	Payments For Proceeds From Divestiture Of Businesses Net Of Cash Divested PaymentsForProceedsFromDivestitureOfBusinessesNetOfCashDivested	-10000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	81958000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1501000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	101000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	83358000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	168478000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1266000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	170000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	169574000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	24485000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	20020000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	44505000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	81958000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	24703000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	20307000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	45010000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	83358000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	11018000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	97000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	544000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	4000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	11562000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	101000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	8995000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	52000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	8319000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	118000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	17314000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	170000	USD
CY2020Q4	fcbc	Number Of Securities In Unrealized Loss Position NumberOfSecuritiesInUnrealizedLossPosition	6	pure
CY2020Q4	fcbc	Percentage Of Combined Depreciation Of Combined Reported Value Of Aggregate Securities Portfolio PercentageOfCombinedDepreciationOfCombinedReportedValueOfAggregateSecuritiesPortfolio	0.0012	pure
CY2020Q4	fcbc	Number Of Securities In Unrealized Loss Position Greater Than Or Equal To One Year NumberOfSecuritiesInUnrealizedLossPositionGreaterThanOrEqualToOneYear	1	pure
CY2019Q4	fcbc	Number Of Securities In Unrealized Loss Position NumberOfSecuritiesInUnrealizedLossPosition	17	pure
CY2019Q4	fcbc	Percentage Of Combined Depreciation Of Combined Reported Value Of Aggregate Securities Portfolio PercentageOfCombinedDepreciationOfCombinedReportedValueOfAggregateSecuritiesPortfolio	0.0010	pure
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	419000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	67000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	34000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	110000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	618000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	385000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-43000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-618000	USD
CY2020Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	36560000	USD
CY2019Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	27870000	USD
CY2020Q4	us-gaap	Bank Overdrafts BankOverdrafts	1130000	USD
CY2019Q4	us-gaap	Bank Overdrafts BankOverdrafts	2200000	USD
CY2020Q4	fcbc	Deferred Loan Fees DeferredLoanFees	5580000	USD
CY2019Q4	fcbc	Deferred Loan Fees DeferredLoanFees	4600000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2176952000	USD
CY2020Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income Percent LoansAndLeasesReceivableNetOfDeferredIncomePercent	0.9956	pure
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2101599000	USD
CY2019Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income Percent LoansAndLeasesReceivableNetOfDeferredIncomePercent	0.9939	pure
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	9680000	USD
CY2020Q4	fcbc	Loans And Leases Receivable Gross Carrying Amount Covered Percent LoansAndLeasesReceivableGrossCarryingAmountCoveredPercent	0.0044	pure
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	12861000	USD
CY2019Q4	fcbc	Loans And Leases Receivable Gross Carrying Amount Covered Percent LoansAndLeasesReceivableGrossCarryingAmountCoveredPercent	0.0061	pure
CY2020Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmount	2186632000	USD
CY2020Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount Percent LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmountPercent	1.0000	pure
CY2019Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmount	2114460000	USD
CY2019Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount Percent LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmountPercent	1.0000	pure
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	0	USD
CY2019Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	263000	USD
CY2020Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	351222
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	9680000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	12861000	USD
CY2017Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	22853000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	7532000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	1778000	USD
CY2018	fcbc	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Removals Extensions And Other Events Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldRemovalsExtensionsAndOtherEventsNet	130000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	17229000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	17229000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	4267000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	1457000	USD
CY2019	fcbc	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Removals Extensions And Other Events Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldRemovalsExtensionsAndOtherEventsNet	45000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	14464000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	14464000	USD
CY2020	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	8152000	USD
CY2020	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	2497000	USD
CY2020	fcbc	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Removals Extensions And Other Events Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldRemovalsExtensionsAndOtherEventsNet	-14464000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	5655000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2176952000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	9680000	USD
CY2020Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmount	2186632000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2101599000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	12861000	USD
CY2019Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmount	2114460000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	37819000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	43847000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	28685000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	32884000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1406000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	1459000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	427000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	2487000	USD
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	8917000	USD
CY2020Q4	fcbc	Allowance For Loan Losses AllowanceForLoanLosses	0	USD
CY2020Q4	fcbc	Financing Receivable Deferred Payments FinancingReceivableDeferredPayments	458170000	USD
CY2020Q2	fcbc	Financing Receivable Deferred Payments FinancingReceivableDeferredPayments	436110000	USD
CY2020Q4	fcbc	Financing Receivable Modifications Recorded Investment Nonaccrual Status FinancingReceivableModificationsRecordedInvestmentNonaccrualStatus	1814000	USD
CY2020Q4	fcbc	Financing Receivable Modifications Recorded Investment Accrual Status FinancingReceivableModificationsRecordedInvestmentAccrualStatus	10248000	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	12062000	USD
CY2019Q4	fcbc	Financing Receivable Modifications Recorded Investment Nonaccrual Status FinancingReceivableModificationsRecordedInvestmentNonaccrualStatus	2342000	USD
CY2019Q4	fcbc	Financing Receivable Modifications Recorded Investment Accrual Status FinancingReceivableModificationsRecordedInvestmentAccrualStatus	6575000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	2473000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	645000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	39225000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	45306000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	427000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	31172000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	35357000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	645000	USD
CY2017Q4	fcbc	Loans Deemed To Be Impaired Threshold LoansDeemedToBeImpairedThreshold	250000	USD
CY2018Q1	fcbc	Loans Deemed To Be Impaired Threshold LoansDeemedToBeImpairedThreshold	500000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	1436000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	38230000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	1077000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	29693000	USD
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	976000	USD
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	28495000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	46000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	3427000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	94000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2713000	USD
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	172000	USD
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	6860000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1482000	USD
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	41657000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1171000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	32406000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1148000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	35355000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	22003000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16357000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2176952000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	9680000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2101599000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	12861000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	33453000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	2081007000	USD
CY2019Q4	fcbc	Loans And Leases Receivable Net Of Deferred Income And Net Reported Amount LoansAndLeasesReceivableNetOfDeferredIncomeAndNetReportedAmount	2114460000	USD
CY2020Q4	fcbc	Restructured Loans Reserves RestructuredLoansReserves	500000	USD
CY2020Q4	fcbc	Financing Receivable Number Of Payment Deferrals FinancingReceivableNumberOfPaymentDeferrals	3625	pure
CY2019Q4	fcbc	Allowance For Loan Losses AllowanceForLoanLosses	353000	USD
CY2019Q4	fcbc	Reserve For Unfunded Credit Commitments ReserveForUnfundedCreditCommitments	66000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	18267000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3571000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	6261000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	12	pure
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	4958000	USD
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	4927000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	10	pure
CY2019	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1223000	USD
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1152000	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	pure
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	53000	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	pure
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2020Q4	us-gaap	Other Real Estate Non Covered OtherRealEstateNonCovered	2083000	USD
CY2019Q4	us-gaap	Other Real Estate Non Covered OtherRealEstateNonCovered	3969000	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	2083000	USD
CY2019Q4	us-gaap	Other Real Estate OtherRealEstate	3969000	USD
CY2020Q4	fcbc	Other Real Estate Owned Secured By Residential Real Estate Noncovered OtherRealEstateOwnedSecuredByResidentialRealEstateNoncovered	769000	USD
CY2019Q4	fcbc	Other Real Estate Owned Secured By Residential Real Estate Noncovered OtherRealEstateOwnedSecuredByResidentialRealEstateNoncovered	2232000	USD
CY2020Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	4141000	USD
CY2019Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1539000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	18425000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	12668000	USD
CY2020	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	6623000	USD
CY2020	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1712000	USD
CY2020	us-gaap	Allowance For Loan And Lease Losses Writeoffs Net AllowanceForLoanAndLeaseLossesWriteoffsNet	4911000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	26182000	USD
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	2848000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Writeoffs Net AllowanceForLoanAndLeaseLossesWriteoffsNet	3413000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	18425000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	8049000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	427000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2138921000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	25754000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	6535000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	645000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1672634000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	17780000	USD
CY2020Q4	fcbc	Acquired Impaired Loans Evaluated For Impairment AcquiredImpairedLoansEvaluatedForImpairment	39662000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	62824000	USD
CY2020Q4	fcbc	Allowance For Acquired Impaired Loans Evaluated AllowanceForAcquiredImpairedLoansEvaluated	0	USD
CY2019Q4	fcbc	Acquired Impaired Loans Evaluated For Impairment AcquiredImpairedLoansEvaluatedForImpairment	61247000	USD
CY2019Q4	fcbc	Allowance For Acquired Impaired Loans Evaluated AllowanceForAcquiredImpairedLoansEvaluated	0	USD
CY2012Q4	fcbc	Percentage Of Loss Covered By Fdic PercentageOfLossCoveredByFDIC	0.80	pure
CY2019Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	2883000	USD
CY2018Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	5108000	USD
CY2020	fcbc	Fdic Indemnification Asset Accretion Amortization FDICIndemnificationAssetAccretionAmortization	1690000	USD
CY2019	fcbc	Fdic Indemnification Asset Accretion Amortization FDICIndemnificationAssetAccretionAmortization	2377000	USD
CY2020	fcbc	Fdic Indemnification Asset Cash Payments Received Made FDICIndemnificationAssetCashPaymentsReceivedMade	30000	USD
CY2019	fcbc	Fdic Indemnification Asset Cash Payments Received Made FDICIndemnificationAssetCashPaymentsReceivedMade	152000	USD
CY2020Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	1223000	USD
CY2019Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	2883000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	9680000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	12861000	USD
CY2020Q4	us-gaap	Land Land	21693000	USD
CY2019Q4	us-gaap	Land Land	22899000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	50639000	USD
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	52351000	USD
CY2020Q4	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	40072000	USD
CY2019Q4	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	38173000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	112404000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	113423000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	54704000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	50599000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	57700000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	812000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	380000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1010000.00	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4460000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3450000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2910000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	830000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0322	pure
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	154000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	131000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	119000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	117000	USD
CY2020Q4	fcbc	Lessee Operating Lease Liability Payments Due In Rolling Year Five And After LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFiveAndAfter	463000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	984000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	93000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	180000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	203000	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	318000	USD
CY2018Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1490000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	7069000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1450000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	997000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1040000.00	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1446000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1446000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	495821000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	453240000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	878000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	856000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	648000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	1795000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	7069000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	772795000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	627868000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	598148000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	497470000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	258864000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	235712000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	293848000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	372821000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Other Time Deposit InterestBearingDomesticDepositOtherTimeDeposit	126771000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Other Time Deposit InterestBearingDomesticDepositOtherTimeDeposit	142801000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1773452000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1702044000	USD
CY2020Q4	us-gaap	Deposits Deposits	2546247000	USD
CY2019Q4	us-gaap	Deposits Deposits	2329912000	USD
CY2020Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	225521000	USD
CY2020Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	86293000	USD
CY2020Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	45797000	USD
CY2020Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	24440000	USD
CY2020Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	30820000	USD
CY2020Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	7748000	USD
CY2020Q4	us-gaap	Time Deposits TimeDeposits	420619000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	35930000	USD
CY2019Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	53490000	USD
CY2020Q4	fcbc	Contractual Maturities Time Deposits250000 Or More Three Months Or Less ContractualMaturitiesTimeDeposits250000OrMoreThreeMonthsOrLess	3372000	USD
CY2020Q4	fcbc	Contractual Maturities Time Deposits250000 Or More Three Months Through Six Months ContractualMaturitiesTimeDeposits250000OrMoreThreeMonthsThroughSixMonths	6605000	USD
CY2019	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	3970000	USD
CY2018	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	3720000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	964000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.0370	pure
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	33000	USD
CY2020Q4	fcbc	Contractual Maturities Time Deposits250000 Or More After12 Months ContractualMaturitiesTimeDeposits250000OrMoreAfter12Months	16112000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	35930000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	964000	USD
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1601000	USD
CY2019Q1	us-gaap	Longterm Federal Home Loan Bank Advances Noncurrent LongtermFederalHomeLoanBankAdvancesNoncurrent	25000000	USD
CY2020Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	292920000	USD
CY2020Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	175830000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	840630000	USD
CY2020Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	16700000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1131000	USD
CY2019Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	17432000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	510000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	707000	USD
CY2020Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	11312000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	9265000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	0	USD
CY2019	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	262000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	310000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	320000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	355000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	404000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1217000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1570000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	615000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	509000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	12579000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	11312000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	310000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	320000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	245000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	355000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	404000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	358000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	201000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	257000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	228000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-186000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-20000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-57000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1052000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1001000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	888000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0253	pure
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0310	pure
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0428	pure
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1158000	USD
CY2020	fcbc	Excess Tax Benefit From Sharebased Compensation ExcessTaxBenefitFromSharebasedCompensation	0	USD
CY2019	fcbc	Excess Tax Benefit From Sharebased Compensation ExcessTaxBenefitFromSharebasedCompensation	0	USD
CY2018	fcbc	Excess Tax Benefit From Sharebased Compensation ExcessTaxBenefitFromSharebasedCompensation	95000	USD
CY2019Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	346833
CY2018Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	366969
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1643000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1481000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	147200
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.10
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-0
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	32921
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	26.44
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	114279
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.56
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y6M7D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	432000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	114279
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	19.56
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y6M7D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	432000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.0010	pure
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	814000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	916000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	687000	USD
CY2020	fcbc	Other Miscellaneous Income OtherMiscellaneousIncome	3555000	USD
CY2019	fcbc	Other Miscellaneous Income OtherMiscellaneousIncome	1888000	USD
CY2018	fcbc	Other Miscellaneous Income OtherMiscellaneousIncome	1861000	USD
CY2020	us-gaap	Other Operating Income OtherOperatingIncome	4369000	USD
CY2019	us-gaap	Other Operating Income OtherOperatingIncome	2804000	USD
CY2018	us-gaap	Other Operating Income OtherOperatingIncome	2548000	USD
CY2020	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-414000	USD
CY2019	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-1494000	USD
CY2018	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-1549000	USD
CY2020	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2188000	USD
CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	1404000	USD
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	1333000	USD
CY2020	us-gaap	Supplies Expense SuppliesExpense	660000	USD
CY2019	us-gaap	Supplies Expense SuppliesExpense	647000	USD
CY2018	us-gaap	Supplies Expense SuppliesExpense	1045000	USD
CY2020	us-gaap	Other Expenses OtherExpenses	9148000	USD
CY2019	us-gaap	Other Expenses OtherExpenses	8384000	USD
CY2018	us-gaap	Other Expenses OtherExpenses	8800000	USD
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	12410000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	11929000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	12727000	USD
CY2020	fcbc	Percentage Of Operating Income PercentageOfOperatingIncome	0.01	pure
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10048000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	9603000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7201000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1643000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1554000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1233000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11691000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	301000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11157000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8434000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0010	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0000	pure
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	237000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1266000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-152000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	296000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-239000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-11000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	52000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1505000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-163000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	348000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10186000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10994000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8782000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	9683000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	10457000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	9475000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1109000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0312	pure
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1220000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0312	pure
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1016000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0225	pure
CY2020	fcbc	Income Tax Reconciliation Federal State And Local Income Taxes IncomeTaxReconciliationFederalStateAndLocalIncomeTaxes	10792000	USD
CY2020	fcbc	Effective Income Tax Rate Reconciliation Federal State And Local Income Taxes EffectiveIncomeTaxRateReconciliationFederalStateAndLocalIncomeTaxes	0.2412	pure
CY2019	fcbc	Income Tax Reconciliation Federal State And Local Income Taxes IncomeTaxReconciliationFederalStateAndLocalIncomeTaxes	11677000	USD
CY2019	fcbc	Effective Income Tax Rate Reconciliation Federal State And Local Income Taxes EffectiveIncomeTaxRateReconciliationFederalStateAndLocalIncomeTaxes	0.2412	pure
CY2018	fcbc	Income Tax Reconciliation Federal State And Local Income Taxes IncomeTaxReconciliationFederalStateAndLocalIncomeTaxes	10491000	USD
CY2018	fcbc	Effective Income Tax Rate Reconciliation Federal State And Local Income Taxes EffectiveIncomeTaxRateReconciliationFederalStateAndLocalIncomeTaxes	0.2325	pure
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	500000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0151	pure
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	637000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0128	pure
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	702000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0156	pure
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.0000	pure
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.0000	pure
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	569000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.0126	pure
CY2020	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsuranceAmount	139000	USD
CY2020	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsurancePercent	0.0042	pure
CY2019	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsuranceAmount	249000	USD
CY2019	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsurancePercent	0.0050	pure
CY2018	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsuranceAmount	144000	USD
CY2018	fcbc	Effective Income Tax Rate Reconciliation Adjustment From Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationAdjustmentFromBankOwnedLifeInsurancePercent	0.0032	pure
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-98000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.0020	pure
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-1669000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0053	pure
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10186000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2209	pure
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10994000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2224	pure
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8782000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1946	pure
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	6128000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	4312000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	545000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	540000	USD
CY2020Q4	fcbc	Deferred Tax Assets Purchase Accounting DeferredTaxAssetsPurchaseAccounting	2559000	USD
CY2019Q4	fcbc	Deferred Tax Assets Purchase Accounting DeferredTaxAssetsPurchaseAccounting	3689000	USD
CY2020Q4	fcbc	Deferred Tax Assets Federal Deposit Insurance Company Transaction DeferredTaxAssetsFederalDepositInsuranceCompanyTransaction	1685000	USD
CY2019Q4	fcbc	Deferred Tax Assets Federal Deposit Insurance Company Transaction DeferredTaxAssetsFederalDepositInsuranceCompanyTransaction	1597000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	217000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	745000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	4048000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	4079000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	4093000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	4279000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	2401000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	1247000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1816000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1746000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	23492000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22234000	USD
CY2020Q4	fcbc	Deferred Tax Liabilities Federal Deposit Insurance Company Transaction DeferredTaxLiabilitiesFederalDepositInsuranceCompanyTransaction	286000	USD
CY2019Q4	fcbc	Deferred Tax Liabilities Federal Deposit Insurance Company Transaction DeferredTaxLiabilitiesFederalDepositInsuranceCompanyTransaction	675000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2450000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1080000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	1482000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	1912000	USD
CY2020Q4	fcbc	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	257000	USD
CY2019Q4	fcbc	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	230000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	287000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	399000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4762000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4296000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	18730000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	17938000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	35926000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	38802000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	36340000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17781748
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15690812
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16587504
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	33632
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	65281
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	78881
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17815380
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15756093
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16666385
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.47
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.02
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CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	3958000	USD
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CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	20345000	USD
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CY2019Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	7290000	USD
CY2020	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	70000	USD
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CY2020Q4	us-gaap	Guaranty Liabilities GuarantyLiabilities	179022000	USD
CY2019Q4	us-gaap	Guaranty Liabilities GuarantyLiabilities	167612000	USD
CY2020Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	408430000	USD
CY2019Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	396328000	USD
CY2020Q4	fcbc	Reserve For Unfunded Credit Commitments ReserveForUnfundedCreditCommitments	66000	USD
CY2016Q1	fcbc	Capital Conservation Buffer CapitalConservationBuffer	0.00625	pure
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CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	292019000	USD
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CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	122724000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600	pure
CY2020Q4	us-gaap	Capital Capital	317595000	USD
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1553	pure
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	163632000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	292019000	USD
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CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	114081000	USD
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CY2019Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	292241000	USD
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CY2019Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	91926000	USD
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CY2019Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	292241000	USD
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CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	122568000	USD
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CY2019Q4	us-gaap	Capital Capital	310732000	USD
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CY2019Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	163423000	USD
CY2019Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2019Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	292241000	USD
CY2019Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1401	pure
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	83408000	USD
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26339000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26834000	USD
CY2020Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	27717000	USD
CY2020Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3500000	USD
CY2020Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3831000	USD
CY2020Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4703000	USD
CY2020Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	634000	USD
CY2020Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	24182000	USD
CY2020Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	22508000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	22131000	USD
CY2020Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	27083000	USD
CY2020Q1	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	7164000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17998994
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17701853
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17710283
CY2020Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17717356
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18050071
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17728300
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2020Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	29509000	USD
CY2020Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	27786000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	27995000	USD
CY2020Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	28746000	USD
CY2020Q1	us-gaap	Interest Expense InterestExpense	1827000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	1447000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	1161000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	1029000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	27682000	USD
CY2020Q2	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	6913000	USD
CY2020Q3	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	7638000	USD
CY2020Q4	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	7733000	USD
CY2020Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	385000	USD
CY2020Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
CY2020Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
CY2020Q4	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	21664000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	18913000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	19171000	USD
CY2020Q4	us-gaap	Noninterest Expense NoninterestExpense	19877000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10067000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10508000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10598000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14939000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2195000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2270000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2332000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3389000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	7872000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	8238000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	8266000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	11550000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17732428
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17751805
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	23611000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	24382000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	23605000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	23370000	USD
CY2019Q1	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	8080000	USD
CY2019Q2	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	8692000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	20966000	USD
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	21404000	USD
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	21546000	USD
CY2019Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	21966000	USD
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2019Q1	us-gaap	Interest Expense InterestExpense	1425000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	1393000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	1384000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	1313000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	22186000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	22989000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	22221000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	22057000	USD
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1220000	USD
CY2019Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1585000	USD
CY2019Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	675000	USD
CY2019Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	91000	USD
CY2019Q3	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	7634000	USD
CY2019Q4	fcbc	Other Operating Income Excluding Net Gain Loss On Sale Of Securities OtherOperatingIncomeExcludingNetGainLossOnSaleOfSecurities	9314000	USD
CY2019Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
CY2019Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-43000	USD
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CY2019Q4	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	16785000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	16651000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	17444000	USD
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	18883000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12261000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	13402000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11736000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12397000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2630000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2951000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2580000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2833000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	9631000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	10451000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	9156000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	9564000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15839424
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15712204
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15603992
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15611093
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15920950
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15775320
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15664587
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15670047

Files In Submission

Name	View Source	Status
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$FCBC
First Community Bankshares Inc Stock $fcbc

2019 Q4 Form 10-K Financial Statement

#000143774921005876 Filed on March 12, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCBC First Community Bankshares Inc Stock $fcbc

2019 Q4 Form 10-K Financial Statement

#000143774921005876 Filed on March 12, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCBC
First Community Bankshares Inc Stock $fcbc