$ffnw 2016 Q4 10-K

Concept	2016 Q4	2015 Q4	2015 Q3
Revenue
YoY Change
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	$280.0K	$240.0K	$210.0K
YoY Change	16.67%	26.32%	10.53%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$2.105M	$1.772M	$1.694M
YoY Change	18.79%	10.13%	11.67%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$4.344M	$3.643M	$3.430M
YoY Change	19.24%	-20.53%	-18.27%
Income Tax	$1.320M	$1.530M	$980.0K
% Of Pretax Income	30.39%	42.0%	28.57%
Net Earnings	$3.021M	$2.117M	$2.446M
YoY Change	42.7%	-27.99%	-10.57%
Net Earnings / Revenue
Basic Earnings Per Share	$0.29	$0.16	$0.18
Diluted Earnings Per Share	$0.29	$0.16	$0.18
COMMON SHARES
Basic Shares Outstanding	10.93M shares	14.11M shares	13.37M shares
Diluted Shares Outstanding			13.53M shares

Concept	2016 Q4	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$31.35M	$105.7M	$122.4M
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	$18.46M	$17.71M	$17.52M
YoY Change	4.26%	5.81%	3.89%
Goodwill	$0.00
YoY Change
Intangibles	$0.00
YoY Change
Long-Term Investments
YoY Change
Other Assets	$3.100M	$4.600M	$5.200M
YoY Change	-32.61%	-44.58%	-48.51%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.038B	$979.9M	$984.1M
YoY Change	5.89%	4.58%	7.5%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$200.0K	$100.0K	$100.0K
YoY Change	100.0%	0.0%	0.0%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$200.0K	$100.0K	$100.0K
YoY Change	100.0%	0.0%	0.0%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$8.000M	$6.400M	$5.500M
YoY Change	25.0%	56.1%	19.57%
Total Long-Term Liabilities	$8.000M	$6.400M	$5.500M
YoY Change	25.0%	56.1%	19.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$200.0K	$100.0K	$100.0K
Total Long-Term Liabilities	$8.000M	$6.400M	$5.500M
Total Liabilities	$899.5M	$809.2M	$809.1M
YoY Change	11.15%	7.1%	10.29%
SHAREHOLDERS EQUITY
Retained Earnings	$48.98M	$42.89M	$41.54M
YoY Change	14.2%	16.02%	19.59%
Common Stock	$109.0K	$138.0K	$142.0K
YoY Change	-21.01%	-8.61%	-8.39%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$138.1M	$170.7M	$175.0M
YoY Change
Total Liabilities & Shareholders Equity	$1.038B	$979.9M	$984.1M
YoY Change	5.89%	4.58%	7.5%

Concept	2016 Q4	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	$3.021M	$2.117M	$2.446M
YoY Change	42.7%	-27.99%	-10.57%
Depreciation, Depletion And Amortization	$280.0K	$240.0K	$210.0K
YoY Change	16.67%	26.32%	10.53%
Cash From Operating Activities	$5.170M	$3.000M	$4.700M
YoY Change	72.33%	18.58%	-29.22%
INVESTING ACTIVITIES
Capital Expenditures	-$440.0K	-$430.0K	-$790.0K
YoY Change	2.33%	616.67%	3850.0%
Acquisitions
YoY Change
Other Investing Activities	$33.94M	-$13.29M	-$24.29M
YoY Change	-355.38%	-150.38%	636.06%
Cash From Investing Activities	$33.50M	-$13.72M	-$25.08M
YoY Change	-344.17%	-152.15%	657.7%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-39.83M	-5.920M	35.76M
YoY Change	572.8%	-130.22%	208.01%
NET CHANGE
Cash From Operating Activities	5.170M	3.000M	4.700M
Cash From Investing Activities	33.50M	-13.72M	-25.08M
Cash From Financing Activities	-39.83M	-5.920M	35.76M
Net Change In Cash	-1.160M	-16.64M	15.38M
YoY Change	-93.03%	-134.36%	2.95%
FREE CASH FLOW
Cash From Operating Activities	$5.170M	$3.000M	$4.700M
Capital Expenditures	-$440.0K	-$430.0K	-$790.0K
Free Cash Flow	$5.610M	$3.430M	$5.490M
YoY Change	63.56%	32.43%	-17.57%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001401564
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	10748437	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	150830985	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	First Financial Northwest, Inc.
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
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CY2017Q4	ffnw	Certificatedof Deposits Retail CertificatedofDepositsRetail	333264000	USD
CY2016Q4	ffnw	Common Equity Tier One Capital CommonEquityTierOneCapital	119652000	USD
CY2017Q4	ffnw	Common Equity Tier One Capital CommonEquityTierOneCapital	122090000	USD
CY2016Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	37498000	USD
CY2017Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	43878000	USD
CY2016Q4	ffnw	Common Equity Tier One Capitalto Risk Weighted Assets CommonEquityTierOneCapitaltoRiskWeightedAssets	0.1436
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CY2016Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalized CommonEquityTierOneCapitaltobeWellCapitalized	54163000	USD
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CY2016Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets	0.0650
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CY2016Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2017Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2015Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	0	USD
CY2016Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	0	USD
CY2017Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	62000	USD
CY2015Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	0	USD
CY2016Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	0	USD
CY2017Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	5000	USD
CY2015Q4	ffnw	Deferred Tax Assets Other Real Estate Owned Market Value Adjustments DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments	213000	USD
CY2016Q4	ffnw	Deferred Tax Assets Other Real Estate Owned Market Value Adjustments DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments	231000	USD
CY2017Q4	ffnw	Deferred Tax Assets Other Real Estate Owned Market Value Adjustments DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments	4000	USD
CY2015Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	187000	USD
CY2016Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	131000	USD
CY2017Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	98000	USD
CY2015Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	1255000	USD
CY2016Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	552000	USD
CY2017Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	271000	USD
CY2015Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	870000	USD
CY2016Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1477000	USD
CY2017Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1321000	USD
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CY2016Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	9400000	USD
CY2017Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	7600000	USD
CY2016Q4	ffnw	Deposits Public Funds DepositsPublicFunds	23700000	USD
CY2017Q4	ffnw	Deposits Public Funds DepositsPublicFunds	21500000	USD
CY2017	ffnw	Employee Stock Ownership Plan Esop Interest Rate Of Loan From Company EmployeeStockOwnershipPlanEsopInterestRateOfLoanFromCompany	0.0488
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CY2017	ffnw	Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop	1600000	USD
CY2017Q4	ffnw	Employee Stock Ownership Plan Esop Shares Contributed To Esop Price Per Share EmployeeStockOwnershipPlanEsopSharesContributedToEsopPricePerShare	10.00
CY2016Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0087	Rate
CY2017Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0130	Rate
CY2016Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	163893000	USD
CY2017Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	192227000	USD
CY2017Q4	ffnw	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged As Percent Of Public Deposits Held FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledgedAsPercentOfPublicDepositsHeld	0.5
CY2017Q4	ffnw	Federal Home Loan Bank Stock Par Value FederalHomeLoanBankStockParValue	100
CY2015	ffnw	Foreclosed Real Estate Recovery Expense Net ForeclosedRealEstateRecoveryExpenseNet	484000	USD
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CY2015	ffnw	Impaired Financing Receivable With No Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized	1738000	USD
CY2016	ffnw	Impaired Financing Receivable With No Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized	1588000	USD
CY2017	ffnw	Impaired Financing Receivable With No Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized	808000	USD
CY2015	ffnw	Impaired Financing Receivable With Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized	731000	USD
CY2016	ffnw	Impaired Financing Receivable With Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized	399000	USD
CY2017	ffnw	Impaired Financing Receivable With Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized	341000	USD
CY2015	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	-1108000	USD
CY2016	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	-1719000	USD
CY2017	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2017	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	360000	USD
CY2015	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	20919	shares
CY2016	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	16545	shares
CY2017	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	10450	shares
CY2015	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	3574000	USD
CY2016	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	3934000	USD
CY2017	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	4362000	USD
CY2015	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	603000	USD
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CY2017	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	1779000	USD
CY2015	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	18000	USD
CY2016	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	30000	USD
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CY2015	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	40000	USD
CY2016	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	47000	USD
CY2017	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	42000	USD
CY2015	ffnw	Interest Expense Time Depositsator Above Fdic Insurance Limit InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit	769000	USD
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CY2016Q4	ffnw	Investments Pledged As Collateral For Public Deposits InvestmentsPledgedAsCollateralForPublicDeposits	22600000	USD
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CY2016Q4	ffnw	Loans Receivable Non Performing LoansReceivableNonPerforming	858000	USD
CY2017Q4	ffnw	Loans Receivable Non Performing LoansReceivableNonPerforming	179000	USD
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CY2016Q4	ffnw	Multiemployer Plans Funded Percentage MultiemployerPlansFundedPercentage	1.037
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CY2015	ffnw	Other Real Estate Gainlosson Disposals OtherRealEstateGainlossonDisposals	526000	USD
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CY2017	ffnw	Other Real Estate Gainlosson Disposals OtherRealEstateGainlossonDisposals	110000	USD
CY2017	ffnw	Reclassification To Accumulated Other Comprehensive Tax Rate Change ReclassificationToAccumulatedOtherComprehensiveTaxRateChange	0	USD
CY2016Q4	ffnw	Regulatory Requirement Federal Reserve System Minimum Reserve Required RegulatoryRequirementFederalReserveSystemMinimumReserveRequired	228000	USD
CY2017Q4	ffnw	Regulatory Requirement Federal Reserve System Minimum Reserve Required RegulatoryRequirementFederalReserveSystemMinimumReserveRequired	0	USD
CY2017Q4	ffnw	Schedule Of Available For Sale Securities Debt Maturities ScheduleOfAvailableForSaleSecuritiesDebtMaturities	78630000	USD
CY2016	ffnw	Stock Canceled During Period Shares Restricted Stock Award Gross StockCanceledDuringPeriodSharesRestrictedStockAwardGross	74478	shares
CY2017	ffnw	Stock Canceled During Period Shares Restricted Stock Award Gross StockCanceledDuringPeriodSharesRestrictedStockAwardGross	8328	shares
CY2016	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2017	ffnw	Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpense	807000	USD
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CY2016Q4	ffnw	Troubled Debt Restructured Loans Nonaccrual Status TroubledDebtRestructuredLoansNonaccrualStatus	174000	USD
CY2017Q4	ffnw	Troubled Debt Restructured Loans Nonaccrual Status TroubledDebtRestructuredLoansNonaccrualStatus	0	USD
CY2016Q4	ffnw	Troubled Debt Restructured Loans Now Performing TroubledDebtRestructuredLoansNowPerforming	30083000	USD
CY2017Q4	ffnw	Troubled Debt Restructured Loans Now Performing TroubledDebtRestructuredLoansNowPerforming	17805000	USD
CY2016	ffnw	Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses	0	USD
CY2017	ffnw	Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses	0	USD
CY2016Q4	ffnw	Troubled Debt Restructuring Commitment To Extend Additional Credit TroubledDebtRestructuringCommitmentToExtendAdditionalCredit	0	USD
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CY2015	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	27327000	USD
CY2016	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	26437000	USD
CY2017	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	44164000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9085000	USD
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CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1328000	USD
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CY2016Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	96852000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	94173000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	440000	USD
CY2016Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	2259000	USD
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CY2016Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	171500000	USD
CY2017Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	216000000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	440000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	622000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	574000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	225000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	60000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2016Q4	us-gaap	Assets Assets	1037584000	USD
CY2017Q4	us-gaap	Assets Assets	1210229000	USD
CY2016Q4	us-gaap	Assets Fair Value Disclosure Recurring AssetsFairValueDisclosureRecurring	130593000	USD
CY2017Q4	us-gaap	Assets Fair Value Disclosure Recurring AssetsFairValueDisclosureRecurring	133768000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	78716000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	129260000	USD
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CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	130852000	USD
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	133475000	USD
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	309000	USD
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	1567000	USD
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses	2181000	USD
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses	2232000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	87654000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	90882000	USD
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	1872000	USD
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	665000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	81535000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	61015000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	6119000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	29867000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	20645000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	20756000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1658000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1663000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	51378000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	51171000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	5035000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5040000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	132242000	USD
CY2016	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	589000	USD
CY2017	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	999000	USD
CY2016	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	2181000	USD
CY2017	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	2232000	USD
CY2016Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	53
CY2017Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	36
CY2017Q4	us-gaap	Bad Debt Reserve For Tax Purposes Of Qualified Lender BadDebtReserveForTaxPurposesOfQualifiedLender	4500000	USD
CY2016Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	24153000	USD
CY2017Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	29027000	USD
CY2015	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	533000	USD
CY2016	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	844000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	623000	USD
CY2015	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	183000	USD
CY2016	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	813000	USD
CY2017	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	919000	USD
CY2017	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	41000	USD
CY2016Q4	us-gaap	Capital Capital	130078000	USD
CY2017Q4	us-gaap	Capital Capital	134292000	USD
CY2016Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	66662000	USD
CY2017Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	78006000	USD
CY2016Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2017Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2016Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	83328000	USD
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	97507000	USD
CY2016Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2016Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1561
CY2017Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1377
CY2015	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2016	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2017	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	71658000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	104049000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	105711000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31352000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16131000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1662000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-74359000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15221000	USD
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	5779000	USD
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	9189000	USD
CY2015	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.0024
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.0024
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.0027
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10938251	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10748437	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10938251	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10748437	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	109000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	107000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8440000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8641000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8838000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	717000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2164000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3204000	USD
CY2015	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	101000	USD
CY2016	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	36000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	69000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4170000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1548000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1738000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2690000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3621000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2891000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	7000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	4556000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3142000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1211000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	7246000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	6763000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4102000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	1375000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	45000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	1051000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	951000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	533000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	646000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	592000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	329000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	510000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	453000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	112000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3257000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3803000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	2700000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2016Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	557000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	259000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	467000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	320000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	0	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	0	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	4000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	44000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	0	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	0	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	222000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	256000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	84000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	299000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	869000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	891000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	192000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	201000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	261000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.5
CY2017	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.06
CY2016Q4	us-gaap	Deposits Deposits	717476000	USD
CY2017Q4	us-gaap	Deposits Deposits	839502000	USD
CY2016Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	204998000	USD
CY2017Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	318636000	USD
CY2016Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	18532000	USD
CY2017Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	38224000	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	28383000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	28456000	USD
CY2016Q4	us-gaap	Deposits Wholesale DepositsWholesale	75488000	USD
CY2017Q4	us-gaap	Deposits Wholesale DepositsWholesale	75488000	USD
CY2015	us-gaap	Depreciation Depreciation	809000	USD
CY2015	us-gaap	Depreciation Depreciation	809000	USD
CY2016	us-gaap	Depreciation Depreciation	1076000	USD
CY2016	us-gaap	Depreciation Depreciation	1076000	USD
CY2017	us-gaap	Depreciation Depreciation	1262000	USD
CY2017	us-gaap	Depreciation Depreciation	1262000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	1333000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	1526000	USD
CY2015	us-gaap	Dividends Cash DividendsCash	3237000	USD
CY2016	us-gaap	Dividends Cash DividendsCash	2803000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	2777000	USD
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.81
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2015	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1400000	USD
CY2016	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1605000	USD
CY2017	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1941000	USD
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Debt Structure Direct Loan Amount EmployeeStockOwnershipPlanESOPDebtStructureDirectLoanAmount	16900000	USD
CY2016Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	12809000	USD
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	8314000	USD
CY2015	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	210000	USD
CY2016	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	183000	USD
CY2017	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	175000	USD
CY2016Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1043893	shares
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1156747	shares
CY2016Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	648907	shares
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	536053	shares
CY2017	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	1692800	shares
CY2016Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2015	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2016	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2017	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	72329000	USD
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	470000	USD
CY2016	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	420000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	491000	USD
CY2017Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	24500000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0087	Rate
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0160	Rate
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	251500000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	231500000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	375100000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	406500000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryInNextRollingTwelveMonths	61500000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearThree	120000000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearTwo	10000000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Next Twelve Rolling Months FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInNextTwelveRollingMonths	0.0141
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Three FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearThree	0.0168
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Two FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearTwo	0.0170
CY2016Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	8031000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	9882000	USD
CY2015Q1	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1194000	USD
CY2015Q2	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1183000	USD
CY2015Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	984000	USD
CY2015Q4	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1526000	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	4887000	USD
CY2016Q1	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	763000	USD
CY2016Q2	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	779000	USD
CY2016Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	847000	USD
CY2016Q4	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1323000	USD
CY2016	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	3712000	USD
CY2017Q1	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	785000	USD
CY2017Q2	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	924000	USD
CY2017Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	909000	USD
CY2017Q4	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	2324000	USD
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	4942000	USD
CY2015	us-gaap	Fees And Commissions FeesAndCommissions	208000	USD
CY2016	us-gaap	Fees And Commissions FeesAndCommissions	261000	USD
CY2017	us-gaap	Fees And Commissions FeesAndCommissions	446000	USD
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	26	loan
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	9	loan
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	6392000	USD
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3383000	USD
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	6392000	USD
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	3383000	USD
CY2016Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	30257000	USD
CY2017Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	17805000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	827688000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1002593000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	473000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	101000	USD
CY2015	us-gaap	Gain Loss On Investments GainLossOnInvestments	449000	USD
CY2016	us-gaap	Gain Loss On Investments GainLossOnInvestments	245000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	119000	USD
CY2015	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	92000	USD
CY2016	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	50000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-567000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-3000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-65000	USD
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	526000	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-87000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	110000	USD
CY2015	us-gaap	General Insurance Expense GeneralInsuranceExpense	359000	USD
CY2016	us-gaap	General Insurance Expense GeneralInsuranceExpense	349000	USD
CY2017	us-gaap	General Insurance Expense GeneralInsuranceExpense	399000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	0	USD
CY2017Q4	us-gaap	Goodwill Goodwill	889000	USD
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	49161000	USD
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	37375000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	24108000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2469000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1987000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1149000	USD
CY2015	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	34410000	USD
CY2016	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	26975000	USD
CY2017	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	18003000	USD
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	14751000	USD
CY2016	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	10400000	USD
CY2017	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	6105000	USD
CY2015Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3423000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3551000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3430000	USD
CY2015Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3643000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14047000	USD
CY2016Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2588000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2219000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3453000	USD
CY2016Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	4344000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	12604000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3129000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2792000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2770000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	4730000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	13421000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4887000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3712000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4942000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-112000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4917000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4412000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4697000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-39000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-98000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	159000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-597000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-357000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	38000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	103000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	107000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	228000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	2730000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	3350000	USD
CY2015	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-297000	USD
CY2016	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	179000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	937000	USD
CY2015	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	87000	USD
CY2016	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	465000	USD
CY2017	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	256000	USD
CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-4170000	USD
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1548000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1738000	USD
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	61280000	USD
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	42069000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	47497000	USD
CY2015	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	19075000	USD
CY2016	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	131271000	USD
CY2017	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	173219000	USD
CY2015	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-7000	USD
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	96000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	95000	USD
CY2015	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	2295000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	1589000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	1259000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-270000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	105000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2829000	USD

CY2017

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Amendment Flag

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false

CY2017

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Current Fiscal Year End Date

CurrentFiscalYearEndDate

--12-31

CY2017

dei

Document Fiscal Period Focus

DocumentFiscalPeriodFocus

FY

CY2017

dei

Document Fiscal Year Focus

DocumentFiscalYearFocus

2017

CY2017

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Document Period End Date

DocumentPeriodEndDate

2017-12-31

CY2017

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Document Type

DocumentType

10-K

CY2017

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Entity Central Index Key

EntityCentralIndexKey

0001401564

CY2018Q1

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Entity Common Stock Shares Outstanding

EntityCommonStockSharesOutstanding

10748437

shares

CY2017

dei

Entity Current Reporting Status

EntityCurrentReportingStatus

Yes

CY2017

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Entity Filer Category

EntityFilerCategory

Accelerated Filer

CY2017Q2

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Entity Public Float

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150830985

USD

CY2017

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Entity Registrant Name

EntityRegistrantName

First Financial Northwest, Inc.

CY2017

dei

Entity Voluntary Filers

EntityVoluntaryFilers

No

CY2017

dei

Entity Well Known Seasoned Issuer

EntityWellKnownSeasonedIssuer

No

CY2016Q4

ffnw

Certificatedof Deposits Retail

CertificatedofDepositsRetail

356653000

USD

CY2017Q4

ffnw

Certificatedof Deposits Retail

CertificatedofDepositsRetail

333264000

USD

CY2016Q4

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Common Equity Tier One Capital

CommonEquityTierOneCapital

119652000

USD

CY2017Q4

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Common Equity Tier One Capital

CommonEquityTierOneCapital

122090000

USD

CY2016Q4

ffnw

Common Equity Tier One Capital For Capital Adequacy

CommonEquityTierOneCapitalForCapitalAdequacy

37498000

USD

CY2017Q4

ffnw

Common Equity Tier One Capital For Capital Adequacy

CommonEquityTierOneCapitalForCapitalAdequacy

43878000

USD

CY2016Q4

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Common Equity Tier One Capitalto Risk Weighted Assets

CommonEquityTierOneCapitaltoRiskWeightedAssets

0.1436

CY2017Q4

ffnw

Common Equity Tier One Capitalto Risk Weighted Assets

CommonEquityTierOneCapitaltoRiskWeightedAssets

0.1252

CY2016Q4

ffnw

Common Equity Tier One Capitaltobe Well Capitalized

CommonEquityTierOneCapitaltobeWellCapitalized

54163000

USD

CY2017Q4

ffnw

Common Equity Tier One Capitaltobe Well Capitalized

CommonEquityTierOneCapitaltobeWellCapitalized

63379000

USD

CY2016Q4

ffnw

Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets

CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets

0.0650

CY2017Q4

ffnw

Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets

CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets

0.0650

CY2016Q4

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Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy

CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy

0.0450

CY2017Q4

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Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy

CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy

0.0450

CY2015Q4

ffnw

Deferred Tax Assets Acquisitions

DeferredTaxAssetsAcquisitions

0

USD

CY2016Q4

ffnw

Deferred Tax Assets Acquisitions

DeferredTaxAssetsAcquisitions

0

USD

CY2017Q4

ffnw

Deferred Tax Assets Acquisitions

DeferredTaxAssetsAcquisitions

62000

USD

CY2015Q4

ffnw

Deferred Tax Assets Core Deposit Intangible

DeferredTaxAssetsCoreDepositIntangible

0

USD

CY2016Q4

ffnw

Deferred Tax Assets Core Deposit Intangible

DeferredTaxAssetsCoreDepositIntangible

0

USD

CY2017Q4

ffnw

Deferred Tax Assets Core Deposit Intangible

DeferredTaxAssetsCoreDepositIntangible

5000

USD

CY2015Q4

ffnw

Deferred Tax Assets Other Real Estate Owned Market Value Adjustments

DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments

213000

USD

CY2016Q4

ffnw

Deferred Tax Assets Other Real Estate Owned Market Value Adjustments

DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments

231000

USD

CY2017Q4

ffnw

Deferred Tax Assets Other Real Estate Owned Market Value Adjustments

DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments

4000

USD

CY2015Q4

ffnw

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments

187000

USD

CY2016Q4

ffnw

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments

131000

USD

CY2017Q4

ffnw

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments

98000

USD

CY2015Q4

ffnw

Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends

DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends

1255000

USD

CY2016Q4

ffnw

Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends

DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends

552000

USD

CY2017Q4

ffnw

Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends

DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends

271000

USD

CY2015Q4

ffnw

Deferred Tax Liabilities Loan Origination Fees

DeferredTaxLiabilitiesLoanOriginationFees

870000

USD

CY2016Q4

ffnw

Deferred Tax Liabilities Loan Origination Fees

DeferredTaxLiabilitiesLoanOriginationFees

1477000

USD

CY2017Q4

ffnw

Deferred Tax Liabilities Loan Origination Fees

DeferredTaxLiabilitiesLoanOriginationFees

1321000

USD

CY2017

ffnw

Defined Contribution Plan Number Of Days Of Continuous Employment To Be Eligible

DefinedContributionPlanNumberOfDaysOfContinuousEmploymentToBeEligible

P90D

CY2016Q4

ffnw

Deposits Controlled By Related Parties

DepositsControlledByRelatedParties

9400000

USD

CY2017Q4

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Deposits Controlled By Related Parties

DepositsControlledByRelatedParties

7600000

USD

CY2016Q4

ffnw

Deposits Public Funds

DepositsPublicFunds

23700000

USD

CY2017Q4

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Deposits Public Funds

DepositsPublicFunds

21500000

USD

CY2017

ffnw

Employee Stock Ownership Plan Esop Interest Rate Of Loan From Company

EmployeeStockOwnershipPlanEsopInterestRateOfLoanFromCompany

0.0488

CY2015

ffnw

Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop

EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop

1600000

USD

CY2016

ffnw

Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop

EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop

1600000

USD

CY2017

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Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop

EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop

1600000

USD

CY2017Q4

ffnw

Employee Stock Ownership Plan Esop Shares Contributed To Esop Price Per Share

EmployeeStockOwnershipPlanEsopSharesContributedToEsopPricePerShare

10.00

CY2016Q4

ffnw

Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period

FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod

0.0087

Rate

CY2017Q4

ffnw

Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period

FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod

0.0130

Rate

CY2016Q4

ffnw

Federal Home Loan Bank Advances Activityfor Year Average Outstanding

FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding

163893000

USD

CY2017Q4

ffnw

Federal Home Loan Bank Advances Activityfor Year Average Outstanding

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192227000

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CY2017Q4

ffnw

Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged As Percent Of Public Deposits Held

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledgedAsPercentOfPublicDepositsHeld

0.5

CY2017Q4

ffnw

Federal Home Loan Bank Stock Par Value

FederalHomeLoanBankStockParValue

100

CY2015

ffnw

Foreclosed Real Estate Recovery Expense Net

ForeclosedRealEstateRecoveryExpenseNet

484000

USD

CY2016

ffnw

Foreclosed Real Estate Recovery Expense Net

ForeclosedRealEstateRecoveryExpenseNet

-294000

USD

CY2017

ffnw

Foreclosed Real Estate Recovery Expense Net

ForeclosedRealEstateRecoveryExpenseNet

67000

USD

CY2015

ffnw

Impaired Financing Receivable With No Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized

1738000

USD

CY2016

ffnw

Impaired Financing Receivable With No Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized

1588000

USD

CY2017

ffnw

Impaired Financing Receivable With No Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized

808000

USD

CY2015

ffnw

Impaired Financing Receivable With Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized

731000

USD

CY2016

ffnw

Impaired Financing Receivable With Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized

399000

USD

CY2017

ffnw

Impaired Financing Receivable With Related Allowance Interest Income Recognized

ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized

341000

USD

CY2015

ffnw

Increase Decreasein Valuation Allowance For Investments Available For Sale

IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale

-1108000

USD

CY2016

ffnw

Increase Decreasein Valuation Allowance For Investments Available For Sale

IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale

-1719000

USD

CY2017

ffnw

Stock Canceled During Period Value Restricted Stock Award Gross

StockCanceledDuringPeriodValueRestrictedStockAwardGross

0

USD

CY2017

ffnw

Increase Decreasein Valuation Allowance For Investments Available For Sale

IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale

360000

USD

CY2015

ffnw

Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants

IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants

20919

shares

CY2016

ffnw

Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants

IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants

16545

shares

CY2017

ffnw

Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants

IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants

10450

shares

CY2015

ffnw

Interest Expense Deposit Liabilities Certificates Of Deposit

InterestExpenseDepositLiabilitiesCertificatesOfDeposit

3574000

USD

CY2016

ffnw

Interest Expense Deposit Liabilities Certificates Of Deposit

InterestExpenseDepositLiabilitiesCertificatesOfDeposit

3934000

USD

CY2017

ffnw

Interest Expense Deposit Liabilities Certificates Of Deposit

InterestExpenseDepositLiabilitiesCertificatesOfDeposit

4362000

USD

CY2015

ffnw

Interest Expense Deposit Liabilities Money Market

InterestExpenseDepositLiabilitiesMoneyMarket

603000

USD

CY2016

ffnw

Interest Expense Deposit Liabilities Money Market

InterestExpenseDepositLiabilitiesMoneyMarket

870000

USD

CY2017

ffnw

Interest Expense Deposit Liabilities Money Market

InterestExpenseDepositLiabilitiesMoneyMarket

1779000

USD

CY2015

ffnw

Interest Expense Deposit Liabilities Notice Of Withdrawal

InterestExpenseDepositLiabilitiesNoticeOfWithdrawal

18000

USD

CY2016

ffnw

Interest Expense Deposit Liabilities Notice Of Withdrawal

InterestExpenseDepositLiabilitiesNoticeOfWithdrawal

30000

USD

CY2017

ffnw

Interest Expense Deposit Liabilities Notice Of Withdrawal

InterestExpenseDepositLiabilitiesNoticeOfWithdrawal

73000

USD

CY2015

ffnw

Interest Expense Deposit Liabilities Savings

InterestExpenseDepositLiabilitiesSavings

40000

USD

CY2016

ffnw

Interest Expense Deposit Liabilities Savings

InterestExpenseDepositLiabilitiesSavings

47000

USD

CY2017

ffnw

Interest Expense Deposit Liabilities Savings

InterestExpenseDepositLiabilitiesSavings

42000

USD

CY2015

ffnw

Interest Expense Time Depositsator Above Fdic Insurance Limit

InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit

769000

USD

CY2016

ffnw

Interest Expense Time Depositsator Above Fdic Insurance Limit

InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit

975000

USD

CY2017

ffnw

Interest Expense Time Depositsator Above Fdic Insurance Limit

InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit

1100000

USD

CY2016Q4

ffnw

Investments Pledged As Collateral For Public Deposits

InvestmentsPledgedAsCollateralForPublicDeposits

22600000

USD

CY2017Q4

ffnw

Investments Pledged As Collateral For Public Deposits

InvestmentsPledgedAsCollateralForPublicDeposits

14200000

USD

CY2016Q4

ffnw

Loans Receivable Non Performing

LoansReceivableNonPerforming

858000

USD

CY2017Q4

ffnw

Loans Receivable Non Performing

LoansReceivableNonPerforming

179000

USD

CY2017

ffnw

Loans Receivable Number Of Days Delinquent At Which Accrual Of Interest Is Discontinued

LoansReceivableNumberOfDaysDelinquentAtWhichAccrualOfInterestIsDiscontinued

P90D

CY2017Q4

ffnw

Loans Receivable Percentage Of Loan Portfolio

LoansReceivablePercentageOfLoanPortfolio

0.029

CY2017Q4

ffnw

Mortgage Backed Investments Amortized Cost

MortgageBackedInvestmentsAmortizedCost

54759000

USD

CY2016Q4

ffnw

Multiemployer Plans Funded Percentage

MultiemployerPlansFundedPercentage

1.037

CY2017Q4

ffnw

Multiemployer Plans Funded Percentage

MultiemployerPlansFundedPercentage

1.048

CY2015

ffnw

Other Real Estate Gainlosson Disposals

OtherRealEstateGainlossonDisposals

526000

USD

CY2016

ffnw

Other Real Estate Gainlosson Disposals

OtherRealEstateGainlossonDisposals

-87000

USD

CY2017

ffnw

Other Real Estate Gainlosson Disposals

OtherRealEstateGainlossonDisposals

110000

USD

CY2017

ffnw

Reclassification To Accumulated Other Comprehensive Tax Rate Change

ReclassificationToAccumulatedOtherComprehensiveTaxRateChange

0

USD

CY2016Q4

ffnw

Regulatory Requirement Federal Reserve System Minimum Reserve Required

RegulatoryRequirementFederalReserveSystemMinimumReserveRequired

228000

USD

CY2017Q4

ffnw

Regulatory Requirement Federal Reserve System Minimum Reserve Required

RegulatoryRequirementFederalReserveSystemMinimumReserveRequired

0

USD

CY2017Q4

ffnw

Schedule Of Available For Sale Securities Debt Maturities

ScheduleOfAvailableForSaleSecuritiesDebtMaturities

78630000

USD

CY2016

ffnw

Stock Canceled During Period Shares Restricted Stock Award Gross

StockCanceledDuringPeriodSharesRestrictedStockAwardGross

74478

shares

CY2017

ffnw

Stock Canceled During Period Shares Restricted Stock Award Gross

StockCanceledDuringPeriodSharesRestrictedStockAwardGross

8328

shares

CY2016

ffnw

Stock Canceled During Period Value Restricted Stock Award Gross

StockCanceledDuringPeriodValueRestrictedStockAwardGross

0

USD

CY2017

ffnw

Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense

TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpense

807000

USD

CY2015

ffnw

Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense

TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpense

0

USD

CY2016

ffnw

Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense

TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpense

0

USD

CY2016Q4

ffnw

Troubled Debt Restructured Loans Nonaccrual Status

TroubledDebtRestructuredLoansNonaccrualStatus

174000

USD

CY2017Q4

ffnw

Troubled Debt Restructured Loans Nonaccrual Status

TroubledDebtRestructuredLoansNonaccrualStatus

0

USD

CY2016Q4

ffnw

Troubled Debt Restructured Loans Now Performing

TroubledDebtRestructuredLoansNowPerforming

30083000

USD

CY2017Q4

ffnw

Troubled Debt Restructured Loans Now Performing

TroubledDebtRestructuredLoansNowPerforming

17805000

USD

CY2016

ffnw

Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses

TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses

0

USD

CY2017

ffnw

Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses

TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses

0

USD

CY2016Q4

ffnw

Troubled Debt Restructuring Commitment To Extend Additional Credit

TroubledDebtRestructuringCommitmentToExtendAdditionalCredit

0

USD

CY2017Q4

ffnw

Troubled Debt Restructuring Commitment To Extend Additional Credit

TroubledDebtRestructuringCommitmentToExtendAdditionalCredit

0

USD

CY2015

ffnw

Value Of Investments Sold During Period

ValueOfInvestmentsSoldDuringPeriod

27327000

USD

CY2016

ffnw

Value Of Investments Sold During Period

ValueOfInvestmentsSoldDuringPeriod

26437000

USD

CY2017

ffnw

Value Of Investments Sold During Period

ValueOfInvestmentsSoldDuringPeriod

44164000

USD

CY2016Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

9085000

USD

CY2017Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

10098000

USD

CY2016Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

-1328000

USD

CY2017Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

-928000

USD

CY2016Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

96852000

USD

CY2017Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

94173000

USD

CY2015

us-gaap

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

440000

USD

CY2016Q4

us-gaap

Advance Payments By Borrowers For Taxes And Insurance

AdvancePaymentsByBorrowersForTaxesAndInsurance

2259000

USD

CY2017Q4

us-gaap

Advance Payments By Borrowers For Taxes And Insurance

AdvancePaymentsByBorrowersForTaxesAndInsurance

2515000

USD

CY2016Q4

us-gaap

Advances From Federal Home Loan Banks

AdvancesFromFederalHomeLoanBanks

171500000

USD

CY2017Q4

us-gaap

Advances From Federal Home Loan Banks

AdvancesFromFederalHomeLoanBanks

216000000

USD

CY2015

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

440000

USD

CY2016

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

622000

USD

CY2017

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

574000

USD

CY2015

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

225000

shares

CY2016

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

60000

shares

CY2017

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

0

shares

CY2016Q4

us-gaap

Assets

1037584000

USD

CY2017Q4

us-gaap

Assets

1210229000

USD

CY2016Q4

us-gaap

Assets Fair Value Disclosure Recurring

AssetsFairValueDisclosureRecurring

130593000

USD

CY2017Q4

us-gaap

Assets Fair Value Disclosure Recurring

AssetsFairValueDisclosureRecurring

133768000

USD

CY2017Q4

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

AvailableForSaleDebtSecuritiesAmortizedCostBasis

78716000

USD

CY2016Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

129260000

USD

CY2017Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

132242000

USD

CY2016Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

130852000

USD

CY2017Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

133475000

USD

CY2016

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses

309000

USD

CY2017

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses

1567000

USD

CY2016

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses

2181000

USD

CY2017

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses

2232000

USD

CY2016Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

87654000

USD

CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

90882000

USD

CY2016

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses

1872000

USD

CY2017

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses

665000

USD

CY2016Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

81535000

USD

CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

61015000

USD

CY2016Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

6119000

USD

CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

29867000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

20645000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

20756000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

1658000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

1663000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

51378000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

51171000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

5035000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Fair Value

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

5040000

USD

CY2017Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

132242000

USD

CY2016

us-gaap

Available For Sale Securities Gross Unrealized Gains

AvailableForSaleSecuritiesGrossUnrealizedGains

589000

USD

CY2017

us-gaap

Available For Sale Securities Gross Unrealized Gains

AvailableForSaleSecuritiesGrossUnrealizedGains

999000

USD

CY2016

us-gaap

Available For Sale Securities Gross Unrealized Loss

AvailableForSaleSecuritiesGrossUnrealizedLoss

2181000

USD

CY2017

us-gaap

Available For Sale Securities Gross Unrealized Loss

AvailableForSaleSecuritiesGrossUnrealizedLoss

2232000

USD

CY2016Q4

us-gaap

Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1

AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1

53

CY2017Q4

us-gaap

Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1

AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1

36

CY2017Q4

us-gaap

Bad Debt Reserve For Tax Purposes Of Qualified Lender

BadDebtReserveForTaxPurposesOfQualifiedLender

4500000

USD

CY2016Q4

us-gaap

Bank Owned Life Insurance

BankOwnedLifeInsurance

24153000

USD

CY2017Q4

us-gaap

Bank Owned Life Insurance

BankOwnedLifeInsurance

29027000

USD

CY2015

us-gaap

Bank Owned Life Insurance Income

BankOwnedLifeInsuranceIncome

533000

USD

CY2016

us-gaap

Bank Owned Life Insurance Income

BankOwnedLifeInsuranceIncome

844000

USD

CY2017

us-gaap

Bank Owned Life Insurance Income

BankOwnedLifeInsuranceIncome

623000

USD

CY2015

us-gaap

Brokerage Commissions Revenue

BrokerageCommissionsRevenue

183000

USD

CY2016

us-gaap

Brokerage Commissions Revenue

BrokerageCommissionsRevenue

813000

USD

CY2017

us-gaap

Brokerage Commissions Revenue

BrokerageCommissionsRevenue

919000

USD

CY2017

us-gaap

Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual

BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

41000

USD

CY2016Q4

us-gaap

Capital

130078000

USD

CY2017Q4

us-gaap

Capital

134292000

USD

CY2016Q4

us-gaap

Capital Required For Capital Adequacy

CapitalRequiredForCapitalAdequacy

66662000

USD

CY2017Q4

us-gaap

Capital Required For Capital Adequacy

CapitalRequiredForCapitalAdequacy

78006000

USD

CY2016Q4

us-gaap

Capital Required For Capital Adequacy To Risk Weighted Assets

CapitalRequiredForCapitalAdequacyToRiskWeightedAssets

0.0800

CY2017Q4

us-gaap

Capital Required For Capital Adequacy To Risk Weighted Assets

CapitalRequiredForCapitalAdequacyToRiskWeightedAssets

0.0800

CY2016Q4

us-gaap

Capital Required To Be Well Capitalized

CapitalRequiredToBeWellCapitalized

83328000

USD

CY2017Q4

us-gaap

Capital Required To Be Well Capitalized

CapitalRequiredToBeWellCapitalized

97507000

USD

CY2016Q4

us-gaap

Capital Required To Be Well Capitalized To Risk Weighted Assets

CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

0.1000

CY2017Q4

us-gaap

Capital Required To Be Well Capitalized To Risk Weighted Assets

CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

0.1000

CY2016Q4

us-gaap

Capital To Risk Weighted Assets

CapitalToRiskWeightedAssets

0.1561

CY2017Q4

us-gaap

Capital To Risk Weighted Assets

CapitalToRiskWeightedAssets

0.1377

CY2015

us-gaap

Cash Acquired From Acquisition

CashAcquiredFromAcquisition

0

USD

CY2016

us-gaap

Cash Acquired From Acquisition

CashAcquiredFromAcquisition

0

USD

CY2017

us-gaap

Cash Acquired From Acquisition

CashAcquiredFromAcquisition

71658000

USD

CY2014Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

104049000

USD

CY2015Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

105711000

USD

CY2016Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

31352000

USD

CY2017Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

16131000

USD

CY2015

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

1662000

USD

CY2016

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-74359000

USD

CY2017

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-15221000

USD

CY2016Q4

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

5779000

USD

CY2017Q4

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

9189000

USD

CY2015

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

0.0024

CY2016

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

0.0024

CY2017

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

0.0027

CY2016Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2017Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2016Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

90000000

shares

CY2017Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

90000000

shares

CY2016Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

10938251

shares

CY2017Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

10748437

shares

CY2016Q4

us-gaap

Common Stock Shares Outstanding

CommonStockSharesOutstanding

10938251

shares

CY2017Q4

us-gaap

Common Stock Shares Outstanding

CommonStockSharesOutstanding

10748437

shares

CY2016Q4

us-gaap

Common Stock Value

CommonStockValue

109000

USD

CY2017Q4

us-gaap

Common Stock Value

CommonStockValue

107000

USD

CY2015

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

8440000

USD

CY2016

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

8641000

USD

CY2017

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

8838000

USD

CY2015

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

717000

USD

CY2016

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

2164000

USD

CY2017

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

3204000

USD

CY2015

us-gaap

Deferred Compensation Arrangement With Individual Compensation Expense

DeferredCompensationArrangementWithIndividualCompensationExpense

101000

USD

CY2016

us-gaap

Deferred Compensation Arrangement With Individual Compensation Expense

DeferredCompensationArrangementWithIndividualCompensationExpense

36000

USD

CY2017

us-gaap

Deferred Compensation Arrangement With Individual Compensation Expense

DeferredCompensationArrangementWithIndividualCompensationExpense

69000

USD

CY2015

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

4170000

USD

CY2016

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

1548000

USD

CY2017

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

1738000

USD

CY2015Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

2690000

USD

CY2016Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

3621000

USD

CY2017Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

2891000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Charitable Contribution Carryforwards

DeferredTaxAssetsCharitableContributionCarryforwards

7000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Charitable Contribution Carryforwards

DeferredTaxAssetsCharitableContributionCarryforwards

0

USD

CY2017Q4

us-gaap

Deferred Tax Assets Charitable Contribution Carryforwards

DeferredTaxAssetsCharitableContributionCarryforwards

0

USD

CY2015Q4

us-gaap

Deferred Tax Assets Liabilities Net

DeferredTaxAssetsLiabilitiesNet

4556000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Liabilities Net

DeferredTaxAssetsLiabilitiesNet

3142000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Liabilities Net

DeferredTaxAssetsLiabilitiesNet

1211000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

7246000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

6763000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

4102000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax

1375000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax

45000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax

0

USD

CY2015Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

1051000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

951000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

533000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

646000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

592000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

329000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

510000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

453000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

112000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses

3257000

USD

CY2016Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses

3803000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses

DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses

2700000

USD

CY2015Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

0

USD

CY2016Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

557000

USD

CY2017Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

259000

USD

CY2015Q4

us-gaap

Deferred Tax Liabilities Derivatives

DeferredTaxLiabilitiesDerivatives

0

USD

CY2016Q4

us-gaap

Deferred Tax Liabilities Derivatives

DeferredTaxLiabilitiesDerivatives

467000

USD

CY2017Q4

us-gaap

Deferred Tax Liabilities Derivatives

DeferredTaxLiabilitiesDerivatives

320000

USD

CY2015Q4

us-gaap

Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill

DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

0

USD

CY2016Q4

us-gaap

Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill

DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

0

USD

CY2017Q4

us-gaap

Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill

DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

4000

USD

CY2015Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

44000

USD

CY2016Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

0

USD

CY2017Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

0

USD

CY2015Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

222000

USD

CY2016Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

256000

USD

CY2017Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

84000

USD

CY2015Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

299000

USD

CY2016Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

869000

USD

CY2017Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

891000

USD

CY2015

us-gaap

Defined Contribution Plan Cost Recognized

DefinedContributionPlanCostRecognized

192000

USD

CY2016

us-gaap

Defined Contribution Plan Cost Recognized

DefinedContributionPlanCostRecognized

201000

USD

CY2017

us-gaap

Defined Contribution Plan Cost Recognized

DefinedContributionPlanCostRecognized

261000

USD

CY2017

us-gaap

Defined Contribution Plan Employer Matching Contribution Percent

DefinedContributionPlanEmployerMatchingContributionPercent

0.5

CY2017

us-gaap

Defined Contribution Plan Maximum Annual Contributions Per Employee Percent

DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent

0.06

CY2016Q4

us-gaap

Deposits

717476000

USD

CY2017Q4

us-gaap

Deposits

839502000

USD

CY2016Q4

us-gaap

Deposits Money Market Deposits

DepositsMoneyMarketDeposits

204998000

USD

CY2017Q4

us-gaap

Deposits Money Market Deposits

DepositsMoneyMarketDeposits

318636000

USD

CY2016Q4

us-gaap

Deposits Negotiable Order Of Withdrawal Now

DepositsNegotiableOrderOfWithdrawalNOW

18532000

USD

CY2017Q4

us-gaap

Deposits Negotiable Order Of Withdrawal Now

DepositsNegotiableOrderOfWithdrawalNOW

38224000

USD

CY2016Q4

us-gaap

Deposits Savings Deposits

DepositsSavingsDeposits

28383000

USD

CY2017Q4

us-gaap

Deposits Savings Deposits

DepositsSavingsDeposits

28456000

USD

CY2016Q4

us-gaap

Deposits Wholesale

DepositsWholesale

75488000

USD

CY2017Q4

us-gaap

Deposits Wholesale

DepositsWholesale

75488000

USD

CY2015

us-gaap

Depreciation

809000

USD

CY2015

us-gaap

Depreciation

809000

USD

CY2016

us-gaap

Depreciation

1076000

USD

CY2016

us-gaap

Depreciation

1076000

USD

CY2017

us-gaap

Depreciation

1262000

USD

CY2017

us-gaap

Depreciation

1262000

USD

CY2016Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

1333000

USD

CY2017Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

1526000

USD

CY2015

us-gaap

Dividends Cash

DividendsCash

3237000

USD

CY2016

us-gaap

Dividends Cash

DividendsCash

2803000

USD

CY2017

us-gaap

Dividends Common Stock

DividendsCommonStock

2777000

USD

CY2015Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.16

CY2015Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.17

CY2015Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.18

CY2015Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.16

CY2015

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.67

CY2016Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.14

CY2016Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.12

CY2016Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.22

CY2016Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.29

CY2016

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.75

CY2017Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.23

CY2017Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.18

CY2017Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.18

CY2017Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.24

CY2017

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.82

CY2015Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.16

CY2015Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.17

CY2015Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.18

CY2015Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.16

CY2015

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.67

CY2016Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.14

CY2016Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.11

CY2016Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.22

CY2016Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.29

CY2016

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.74

CY2017Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.22

CY2017Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.18

CY2017Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.18

CY2017Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.23

CY2017

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.81

CY2015

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.35

CY2016

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.35

CY2017

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.35

CY2015

us-gaap

Employee Stock Ownership Plan Esop Compensation Expense

EmployeeStockOwnershipPlanESOPCompensationExpense

1400000

USD

CY2016

us-gaap

Employee Stock Ownership Plan Esop Compensation Expense

EmployeeStockOwnershipPlanESOPCompensationExpense

1605000

USD

CY2017

us-gaap

Employee Stock Ownership Plan Esop Compensation Expense

EmployeeStockOwnershipPlanESOPCompensationExpense

1941000

USD

CY2017Q4

us-gaap

Employee Stock Ownership Plan Esop Debt Structure Direct Loan Amount

EmployeeStockOwnershipPlanESOPDebtStructureDirectLoanAmount

16900000

USD

CY2016Q4

us-gaap

Employee Stock Ownership Plan Esop Deferred Shares Fair Value

EmployeeStockOwnershipPlanESOPDeferredSharesFairValue

12809000

USD

CY2017Q4

us-gaap

Employee Stock Ownership Plan Esop Deferred Shares Fair Value

EmployeeStockOwnershipPlanESOPDeferredSharesFairValue

8314000

USD

CY2015

us-gaap

Employee Stock Ownership Plan Esop Dividends Paid To Esop

EmployeeStockOwnershipPlanESOPDividendsPaidToESOP

210000

USD

CY2016

us-gaap

Employee Stock Ownership Plan Esop Dividends Paid To Esop

EmployeeStockOwnershipPlanESOPDividendsPaidToESOP

183000

USD

CY2017

us-gaap

Employee Stock Ownership Plan Esop Dividends Paid To Esop

EmployeeStockOwnershipPlanESOPDividendsPaidToESOP

175000

USD

CY2016Q4

us-gaap

Employee Stock Ownership Plan Esop Number Of Allocated Shares

EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares

1043893

shares

CY2017Q4

us-gaap

Employee Stock Ownership Plan Esop Number Of Allocated Shares

EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares

1156747

shares

CY2016Q4

us-gaap

Employee Stock Ownership Plan Esop Number Of Suspense Shares

EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares

648907

shares

CY2017Q4

us-gaap

Employee Stock Ownership Plan Esop Number Of Suspense Shares

EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares

536053

shares

CY2017

us-gaap

Employee Stock Ownership Plan Esop Shares Contributed To Esop

EmployeeStockOwnershipPlanESOPSharesContributedToESOP

1692800

shares

CY2016Q4

us-gaap

Employee Stock Ownership Plan Esop Shares In Esop

EmployeeStockOwnershipPlanESOPSharesInESOP

1692800

shares

CY2017Q4

us-gaap

Employee Stock Ownership Plan Esop Shares In Esop

EmployeeStockOwnershipPlanESOPSharesInESOP

1692800

shares

CY2015

us-gaap

Fair Value Of Assets Acquired

FairValueOfAssetsAcquired

0

USD

CY2016

us-gaap

Fair Value Of Assets Acquired

FairValueOfAssetsAcquired

0

USD

CY2017

us-gaap

Fair Value Of Assets Acquired

FairValueOfAssetsAcquired

72329000

USD

CY2015

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

470000

USD

CY2016

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

420000

USD

CY2017

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

491000

USD

CY2017Q4

us-gaap

Federal Funds Purchased

FederalFundsPurchased

24500000

USD

CY2016Q4

us-gaap

Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End

FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd

0.0087

Rate

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End

FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd

0.0160

Rate

CY2016Q4

us-gaap

Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End

FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd

251500000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End

FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd

231500000

USD

CY2016Q4

us-gaap

Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable

375100000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable

406500000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Maturities Summary In Next Rolling Twelve Months

FederalHomeLoanBankAdvancesMaturitiesSummaryInNextRollingTwelveMonths

61500000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Maturities Summary In Rolling Year Three

FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearThree

120000000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Maturities Summary In Rolling Year Two

FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearTwo

10000000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Next Twelve Rolling Months

FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInNextTwelveRollingMonths

0.0141

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Three

FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearThree

0.0168

CY2017Q4

us-gaap

Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Two

FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearTwo

0.0170

CY2016Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

8031000

USD

CY2017Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

9882000

USD

CY2015Q1

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

1194000

USD

CY2015Q2

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

1183000

USD

CY2015Q3

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

984000

USD

CY2015Q4

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

1526000

USD

CY2015

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

4887000

USD

CY2016Q1

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

763000

USD

CY2016Q2

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

779000

USD

CY2016Q3

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

847000

USD

CY2016Q4

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

1323000

USD

CY2016

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

3712000

USD

CY2017Q1

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

785000

USD

CY2017Q2

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

924000

USD

CY2017Q3

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

909000

USD

CY2017Q4

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

2324000

USD

CY2017

us-gaap

Federal Income Tax Expense Benefit Continuing Operations

FederalIncomeTaxExpenseBenefitContinuingOperations

4942000

USD

CY2015

us-gaap

Fees And Commissions

FeesAndCommissions

208000

USD

CY2016

us-gaap

Fees And Commissions

FeesAndCommissions

261000

USD

CY2017

us-gaap

Fees And Commissions

FeesAndCommissions

446000

USD

CY2016

us-gaap

Financing Receivable Modifications Number Of Contracts2

FinancingReceivableModificationsNumberOfContracts2

26

loan

CY2017

us-gaap

Financing Receivable Modifications Number Of Contracts2

FinancingReceivableModificationsNumberOfContracts2

9

loan

CY2016

us-gaap

Financing Receivable Modifications Post Modification Recorded Investment2

FinancingReceivableModificationsPostModificationRecordedInvestment2

6392000

USD

CY2017

us-gaap

Financing Receivable Modifications Post Modification Recorded Investment2

FinancingReceivableModificationsPostModificationRecordedInvestment2

3383000

USD

CY2016

us-gaap

Financing Receivable Modifications Pre Modification Recorded Investment2

FinancingReceivableModificationsPreModificationRecordedInvestment2

6392000

USD

CY2017

us-gaap

Financing Receivable Modifications Pre Modification Recorded Investment2

FinancingReceivableModificationsPreModificationRecordedInvestment2

3383000

USD

CY2016Q4

us-gaap

Financing Receivable Modifications Recorded Investment

FinancingReceivableModificationsRecordedInvestment

30257000

USD

CY2017Q4

us-gaap

Financing Receivable Modifications Recorded Investment

FinancingReceivableModificationsRecordedInvestment

17805000

USD

CY2016Q4

us-gaap

Financing Receivable Recorded Investment90 Days Past Due And Still Accruing

FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing

0

USD

CY2017Q4

us-gaap

Financing Receivable Recorded Investment90 Days Past Due And Still Accruing

FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing

0

USD

CY2016Q4

us-gaap

Financing Receivable Recorded Investment Current

FinancingReceivableRecordedInvestmentCurrent

827688000

USD

CY2017Q4

us-gaap

Financing Receivable Recorded Investment Current

FinancingReceivableRecordedInvestmentCurrent

1002593000

USD

CY2016Q4

us-gaap

Financing Receivable Recorded Investment Past Due

FinancingReceivableRecordedInvestmentPastDue

473000

USD

CY2017Q4

us-gaap

Financing Receivable Recorded Investment Past Due

FinancingReceivableRecordedInvestmentPastDue

101000

USD

CY2015

us-gaap

Gain Loss On Investments

GainLossOnInvestments

449000

USD

CY2016

us-gaap

Gain Loss On Investments

GainLossOnInvestments

245000

USD

CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

119000

USD

CY2015

us-gaap

Gain Loss On Sale Of Investments

GainLossOnSaleOfInvestments

92000

USD

CY2016

us-gaap

Gain Loss On Sale Of Investments

GainLossOnSaleOfInvestments

50000

USD

CY2017

us-gaap

Gain Loss On Sale Of Investments

GainLossOnSaleOfInvestments

-567000

USD

CY2015

us-gaap

Gain Loss On Sale Of Property Plant Equipment

GainLossOnSaleOfPropertyPlantEquipment

0

USD

CY2016

us-gaap

Gain Loss On Sale Of Property Plant Equipment

GainLossOnSaleOfPropertyPlantEquipment

-3000

USD

CY2017

us-gaap

Gain Loss On Sale Of Property Plant Equipment

GainLossOnSaleOfPropertyPlantEquipment

-65000

USD

CY2015

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

526000

USD

CY2016

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

-87000

USD

CY2017

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

110000

USD

CY2015

us-gaap

General Insurance Expense

GeneralInsuranceExpense

359000

USD

CY2016

us-gaap

General Insurance Expense

GeneralInsuranceExpense

349000

USD

CY2017

us-gaap

General Insurance Expense

GeneralInsuranceExpense

399000

USD

CY2016Q4

us-gaap

Goodwill

0

USD

CY2017Q4

us-gaap

Goodwill

889000

USD

CY2015

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

49161000

USD

CY2016

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

37375000

USD

CY2017

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

24108000

USD

CY2015

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

2469000

USD

CY2016

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

1987000

USD

CY2017

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

1149000

USD

CY2015

us-gaap

Impaired Financing Receivable With No Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment

34410000

USD

CY2016

us-gaap

Impaired Financing Receivable With No Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment

26975000

USD

CY2017

us-gaap

Impaired Financing Receivable With No Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment

18003000

USD

CY2015

us-gaap

Impaired Financing Receivable With Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment

14751000

USD

CY2016

us-gaap

Impaired Financing Receivable With Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment

10400000

USD

CY2017

us-gaap

Impaired Financing Receivable With Related Allowance Average Recorded Investment

ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment

6105000

USD

CY2015Q1

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic