$TSBK
Timberland Bancorp Inc Stock $tsbk

$tsbk Overview Financials Valuation SEC Filings Company Website

2019 Q3 Form 10-K Financial Statement

#000093905720000445 Filed on December 09, 2020

Income Statement

Concept	2019 Q3	2019 Q2	2019 Q1
Revenue		$14.19M	$13.84M
YoY Change		35.65%	34.51%
Cost Of Revenue		$110.0K	$117.0K
YoY Change		-9.09%
Gross Profit		$14.08M	$13.72M
YoY Change		36.17%
Gross Profit Margin		99.22%	99.15%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$650.0K	$730.0K	$670.0K
YoY Change	35.42%	65.91%	55.81%
% of Gross Profit		5.19%	4.88%
Operating Expenses		$391.0K	$364.0K
YoY Change		37.19%	44.44%
Operating Profit		$13.68M	$13.36M
YoY Change		36.15%
Interest Expense	$1.233M	$1.248M	$1.113M
YoY Change	57.87%	70.96%	67.12%
% of Operating Profit		9.12%	8.33%
Other Income/Expense, Net
YoY Change
Pretax Income	$7.970M	$7.508M	$7.391M
YoY Change	37.65%	30.57%	34.75%
Income Tax	$1.639M	$1.552M	$1.277M
% Of Pretax Income	20.56%	20.67%	17.28%
Net Earnings	$6.335M	$5.956M	$6.114M
YoY Change	43.26%	34.87%	43.22%
Net Earnings / Revenue		41.99%	44.17%
Basic Earnings Per Share	$0.76	$0.71	$0.74
Diluted Earnings Per Share	$0.75	$0.70	$0.72
COMMON SHARES
Basic Shares Outstanding	8.341M shares	8.339M shares	8.310M shares
Diluted Shares Outstanding		8.482M shares	8.465M shares

Balance Sheet

Concept	2019 Q3	2019 Q2	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$143.0M	$170.8M	$170.8M
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	$22.83M	$23.09M	$22.85M
YoY Change	20.46%	24.71%	26.58%
Goodwill	$15.13M	$15.13M	$15.13M
YoY Change	167.81%	167.81%	167.81%
Intangibles
YoY Change
Long-Term Investments		$1.000M	$900.0K
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.247B	$1.247B	$1.241B
YoY Change	22.47%	23.94%	23.91%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$7.800M	$8.500M	$6.600M
YoY Change	90.24%	77.08%	127.59%
Total Long-Term Liabilities	$7.800M	$8.500M	$6.600M
YoY Change	90.24%	77.08%	127.59%
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities	$7.800M	$8.500M	$6.600M
Total Liabilities	$1.076B	$1.081B	$1.078B
YoY Change	20.41%	22.08%	22.06%
SHAREHOLDERS EQUITY
Retained Earnings	$128.0M	$122.9M	$119.0M
YoY Change	15.8%	14.79%	14.07%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$171.1M	$166.3M	$162.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.247B	$1.247B	$1.241B
YoY Change	22.47%	23.94%	23.91%

Cashflow Statement

Concept	2019 Q3	2019 Q2	2019 Q1
OPERATING ACTIVITIES
Net Income	$6.335M	$5.956M	$6.114M
YoY Change	43.26%	34.87%	43.22%
Depreciation, Depletion And Amortization	$650.0K	$730.0K	$670.0K
YoY Change	35.42%	65.91%	55.81%
Cash From Operating Activities	$540.0K	$7.870M	$2.930M
YoY Change	-89.0%	-3.08%	10.15%
INVESTING ACTIVITIES
Capital Expenditures	-$110.0K	-$680.0K	-$380.0K
YoY Change	-86.25%	-12.82%	-7.32%
Acquisitions
YoY Change
Other Investing Activities	-$22.33M	-$9.780M	-$25.09M
YoY Change	12.15%	-47.42%	865.0%
Cash From Investing Activities	-$22.44M	-$10.46M	-$25.46M
YoY Change	8.35%	-46.03%	745.85%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-5.930M	-1.150M	35.38M
YoY Change	-175.54%	-13.53%	896.62%
NET CHANGE
Cash From Operating Activities	540.0K	7.870M	2.930M
Cash From Investing Activities	-22.44M	-10.46M	-25.46M
Cash From Financing Activities	-5.930M	-1.150M	35.38M
Net Change In Cash	-27.83M	-3.740M	12.85M
YoY Change	250.06%	-70.29%	301.56%
FREE CASH FLOW
Cash From Operating Activities	$540.0K	$7.870M	$2.930M
Capital Expenditures	-$110.0K	-$680.0K	-$380.0K
Free Cash Flow	$650.0K	$8.550M	$3.310M
YoY Change	-88.62%	-3.93%	7.82%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	tsbk	Employee Severance Compensation Plan Employee Service Requirement EmployeeSeveranceCompensationPlanEmployeeServiceRequirement	P2Y
CY2020	tsbk	Employee Severance Compensation Plan Period Following Effective Date Of Change In Control For Eligible Severance Benefits EmployeeSeveranceCompensationPlanPeriodFollowingEffectiveDateOfChangeInControlForEligibleSeveranceBenefits	P5Y
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CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	0-23333
CY2020	dei	Entity Registrant Name EntityRegistrantName	TIMBERLAND BANCORP, INC.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1863696
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	624 Simpson Avenue,
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Hoquiam,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
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CY2020	dei	Security12b Title Security12bTitle	Common stock, $.01 par value
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CY2020	us-gaap	Depreciation Nonproduction DepreciationNonproduction	3962000	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	3831000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	3231000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	98000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-7000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	102000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	631000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	696000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	782000	USD
CY2020	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	276000	USD
CY2019	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	221000	USD
CY2018	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	140000	USD
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1628000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1583000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1296000	USD
CY2020	us-gaap	Postage Expense PostageExpense	568000	USD
CY2019	us-gaap	Postage Expense PostageExpense	514000	USD
CY2018	us-gaap	Postage Expense PostageExpense	456000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	406000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	452000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	998000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	873000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	687000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	1107000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	1019000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	1390000	USD
CY2020	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	204000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	187000	USD
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	294000	USD
CY2020	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	448000	USD
CY2019	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	382000	USD
CY2018	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	336000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2285000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3707000	USD
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1938000	USD
CY2020	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	1114000	USD
CY2019	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	1358000	USD
CY2018	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	1192000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2183000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2205000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1797000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	34063000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	35580000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	29177000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	30307000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	29921000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	22422000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6038000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5901000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	24269000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	24020000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	16721000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.91
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.89
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.88
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.84
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.22
CY2020	us-gaap	Net Income Loss NetIncomeLoss	24269000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	24020000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	16721000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	23000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	8000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	85000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-39000	USD
CY2020	tsbk	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Loss Adjustments Related To Other Factors Tax Portion Attributable To Parent Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveLossAdjustmentsRelatedToOtherFactorsTaxPortionAttributableToParentHeldtomaturitySecurities	1000	USD
CY2019	tsbk	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Loss Adjustments Related To Other Factors Tax Portion Attributable To Parent Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveLossAdjustmentsRelatedToOtherFactorsTaxPortionAttributableToParentHeldtomaturitySecurities	1000	USD
CY2018	tsbk	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Loss Adjustments Related To Other Factors Tax Portion Attributable To Parent Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveLossAdjustmentsRelatedToOtherFactorsTaxPortionAttributableToParentHeldtomaturitySecurities	2000	USD
CY2020	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLossesHeldToMaturitySecuritiesNetOfTax	-3000	USD
CY2019	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLossesHeldToMaturitySecuritiesNetOfTax	-3000	USD
CY2018	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLossesHeldToMaturitySecuritiesNetOfTax	-7000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	3000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	1000	USD
CY2020	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSoldHeldToMaturitySecuritiesNetOfTax	0	USD
CY2019	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSoldHeldToMaturitySecuritiesNetOfTax	9000	USD
CY2018	tsbk	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold Held To Maturity Securities Net Of Tax OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSoldHeldToMaturitySecuritiesNetOfTax	4000	USD
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Noncontrolling Interest Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities	4000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Noncontrolling Interest Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities	6000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Noncontrolling Interest Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities	10000	USD
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	17000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	25000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	37000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	116000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24280000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24136000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16716000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	111000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	116000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	16721000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	318000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	4431000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	882000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	172000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	124657000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	24020000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	499000	shares
CY2019	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	28267000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	401000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	6495000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	441000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	159000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	171067000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	171067000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	24269000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11000	USD
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1238000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	391000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	7083000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	31000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	182000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	187630000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	24269000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	24020000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	16721000	USD
CY2020	us-gaap	Depreciation Depreciation	1572000	USD
CY2019	us-gaap	Depreciation Depreciation	1604000	USD
CY2018	us-gaap	Depreciation Depreciation	1290000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	76000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	703000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	797000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	406000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	452000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2020	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	31000	USD
CY2019	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	441000	USD
CY2018	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	882000	USD
CY2020	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-597000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-645000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	0	USD
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	182000	USD
CY2019	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	159000	USD
CY2018	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	172000	USD
CY2020	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	0	USD
CY2019	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	47000	USD
CY2018	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	0	USD
CY2020	tsbk	Otherthan Temporary Impairment Losses Recoveries Investments Portion Recognizedin Earnings Net OtherthanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedinEarningsNet	-120000	USD
CY2019	tsbk	Otherthan Temporary Impairment Losses Recoveries Investments Portion Recognizedin Earnings Net OtherthanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedinEarningsNet	-59000	USD
CY2018	tsbk	Otherthan Temporary Impairment Losses Recoveries Investments Portion Recognizedin Earnings Net OtherthanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedinEarningsNet	-68000	USD
CY2020	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	19000	USD
CY2019	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	41000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	35000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	89000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	229000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	183000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-167000	USD
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	17000	USD
CY2020	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	173000	USD
CY2019	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	24000	USD
CY2018	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	248000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	5979000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1754000	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1893000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	98000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-7000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	102000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3700000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	0	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	0	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	153446000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	70132000	USD
CY2018	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	62424000	USD
CY2020	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	160987000	USD
CY2019	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	67600000	USD
CY2018	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	66131000	USD
CY2020	tsbk	Amortizationof Servicing Rights AmortizationofServicingRights	838000	USD
CY2019	tsbk	Amortizationof Servicing Rights AmortizationofServicingRights	646000	USD
CY2018	tsbk	Amortizationof Servicing Rights AmortizationofServicingRights	491000	USD
CY2020	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	221000	USD
CY2019	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	8000	USD
CY2018	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	0	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	591000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	613000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	547000	USD
CY2020	tsbk	Boli Death Benefitin Excessof Cash Surrender Value BOLIDeathBenefitinExcessofCashSurrenderValue	0	USD
CY2019	tsbk	Boli Death Benefitin Excessof Cash Surrender Value BOLIDeathBenefitinExcessofCashSurrenderValue	1028000	USD
CY2018	tsbk	Boli Death Benefitin Excessof Cash Surrender Value BOLIDeathBenefitinExcessofCashSurrenderValue	0	USD
CY2020	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	-3637000	USD
CY2019	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	-161000	USD
CY2018	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	-171000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-1168000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-3476000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-173000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33856000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18108000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	21450000	USD
CY2020	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	-12801000	USD
CY2019	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	12083000	USD
CY2018	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	20256000	USD
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	10255000	USD
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	13166000	USD
CY2018	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	6073000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	41212000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	20909000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	13818000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	11784000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	554000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	5802000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1412000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	41000	USD
CY2020	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2019	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	2937000	USD
CY2018	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2020	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	2332000	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0	USD
CY2020	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	485000	USD
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	42000	USD
CY2018	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	83000	USD
CY2020	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	133953000	USD
CY2019	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	39536000	USD
CY2018	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	35522000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1986000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2151000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2186000	USD
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	495000	USD
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	613000	USD
CY2018	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	1693000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	307000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	463000	USD
CY2020	tsbk	Proceedsfrom Death Benefiton Boli ProceedsfromDeathBenefitonBOLI	0	USD
CY2019	tsbk	Proceedsfrom Death Benefiton Boli ProceedsfromDeathBenefitonBOLI	3078000	USD
CY2018	tsbk	Proceedsfrom Death Benefiton Boli ProceedsfromDeathBenefitonBOLI	0	USD
CY2020	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	14284000	USD
CY2018	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Asset1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1	0	USD
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Asset1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1	-6900000	USD
CY2018	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Asset1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1	6900000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-154668000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-44547000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-68269000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	290179000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	27183000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	51608000	USD
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	10000000	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	391000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	401000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	318000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1238000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	499000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	7083000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	6495000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	4431000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	292249000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	20590000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	47495000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	171437000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5849000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	676000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	143015000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	148864000	USD
CY2017Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	148188000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	314452000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	143015000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	148864000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	5522000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	6593000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	4462000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	4760000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	4457000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	2714000	USD
CY2020	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2019	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	293000	USD
CY2018	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	324000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	116000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2889000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020	tsbk	Numberof Bank Branches NumberofBankBranches	24	branch
CY2020	us-gaap	Use Of Estimates UseOfEstimates	The preparation of consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities, as of the date of the consolidated balance sheets, and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the determination of any OTTI in the fair value of investment securities, the valuation of servicing rights, the valuation of OREO, the valuation of assets acquired and liabilities assumed in acquisitions and the valuation of goodwill for potential impairment.
CY2020	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain prior year amounts have been reclassified to conform to the 2020 fiscal year presentation with no change to previously reported net income or shareholders’ equity.
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2019Q3	tsbk	Federal Home Loan Bank Stock Impairment FederalHomeLoanBankStockImpairment	0	USD
CY2020Q3	tsbk	Federal Home Loan Bank Stock Impairment FederalHomeLoanBankStockImpairment	0	USD
CY2020Q3	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	27890000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1942000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	5000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	29827000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	31102000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1489000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	11000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	32580000	USD
CY2019Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	22418000	USD
CY2019Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	114000	USD
CY2019Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	USD
CY2019Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	22532000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	5636000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3000	USD
CY2020Q3	tsbk	Heldtomaturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Less Than12 Months HeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessThan12Months	6	security
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	50000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2000	USD
CY2020Q3	tsbk	Heldtomaturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions12 Monthsor Longer HeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions12MonthsorLonger	6	security
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	5686000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	5000	USD
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	21464000	USD
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	68000	USD
CY2020Q3	tsbk	Availableforsale Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Less Than12 Months AvailableforsaleSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessThan12Months	11	security
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q3	tsbk	Availableforsale Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions12 Monthsor Longer AvailableforsaleSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions12MonthsorLonger	0	security
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	21464000	USD
CY2020Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	68000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	291000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1000	USD
CY2019Q3	tsbk	Heldtomaturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Less Than12 Months HeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessThan12Months	2	security
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	3090000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	10000	USD
CY2019Q3	tsbk	Heldtomaturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions12 Monthsor Longer HeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions12MonthsorLonger	12	security
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	3381000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	11000	USD
CY2019Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1071000	USD
CY2018Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1153000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1301000	USD
CY2020	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	3000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	13000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	14000	USD
CY2020	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	66000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	23000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	80000	USD
CY2020	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	123000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	72000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	82000	USD
CY2020Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	885000	USD
CY2019Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1071000	USD
CY2018Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1153000	USD
CY2020	tsbk	Marketable Securities Realized Loss MarketableSecuritiesRealizedLoss	66000	USD
CY2019	tsbk	Marketable Securities Realized Loss MarketableSecuritiesRealizedLoss	23000	USD
CY2019	tsbk	Held To Maturity Securities Gross Realized Loss Number Of Securities HeldToMaturitySecuritiesGrossRealizedLossNumberOfSecurities	17	security
CY2018	tsbk	Marketable Securities Realized Loss MarketableSecuritiesRealizedLoss	80000	USD
CY2018	tsbk	Held To Maturity Securities Gross Realized Loss Number Of Securities HeldToMaturitySecuritiesGrossRealizedLossNumberOfSecurities	16	security
CY2020Q3	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	81028000	USD
CY2019Q3	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	18587000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	0	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	831000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	830000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	126000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	130000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	3270000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	3261000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	7157000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	7937000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	18507000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	18491000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	20607000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	57907000	USD
CY2020Q3	tsbk	Loansand Leases Receivable Loansin Process Deferred Incomeand Allowance LoansandLeasesReceivableLoansinProcessDeferredIncomeandAllowance	120408000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	21760000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	35189000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	35325000	USD
CY2020Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	27890000	USD
CY2020Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	29827000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	57797000	USD
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale Excluding Loans In Process And Deferred Fees Gross LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGross	1134283000	USD
CY2019Q3	tsbk	Loans Receivable Including Loans Held For Sale Excluding Loans In Process And Deferred Fees Gross LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGross	991376000	USD
CY2020Q3	us-gaap	Loans And Leases Receivable Loans In Process LoansAndLeasesReceivableLoansInProcess	100558000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Loans In Process LoansAndLeasesReceivableLoansInProcess	92226000	USD
CY2020Q3	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	6436000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	2798000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	9690000	USD
CY2019Q3	tsbk	Loansand Leases Receivable Loansin Process Deferred Incomeand Allowance LoansandLeasesReceivableLoansinProcessDeferredIncomeandAllowance	104714000	USD
CY2020Q3	us-gaap	Notes Receivable Net NotesReceivableNet	1013875000	USD
CY2019Q3	us-gaap	Notes Receivable Net NotesReceivableNet	886662000	USD
CY2020Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	790000	USD
CY2019Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	1386000	USD
CY2020Q3	tsbk	Loans Secured By Real Estate LoansSecuredByRealEstate	934351000	USD
CY2020Q3	tsbk	Undisbursed Portion Of Construction Loans In Process UndisbursedPortionOfConstructionLoansInProcess	100558000	USD
CY2020Q3	tsbk	Loans Secured By Real Estate Percentage Of Total Portfolio LoansSecuredByRealEstatePercentageOfTotalPortfolio	0.824
CY2020Q3	tsbk	Concentrationof Credit Risk Real Estate Loansby Industry Benchmark Percentage ConcentrationofCreditRiskRealEstateLoansbyIndustryBenchmarkPercentage	0.20
CY2020	tsbk	Loans Receivable Ratioof Loansto Appraisalor Purchase Price LoansReceivableRatioofLoanstoAppraisalorPurchasePrice	0.90
CY2019Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	94000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	119000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	741000	USD
CY2020	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	178000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	1000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	368000	USD
CY2020	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	24000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	26000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	990000	USD
CY2020Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	248000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	94000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	119000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9690000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3700000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	27000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	51000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13414000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9530000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	161000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	321000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9690000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9553000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	56000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	33000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9530000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	41000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	13373000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13414000	USD
CY2020Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	5773000	USD
CY2020Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1027952000	USD
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	1033725000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	172000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	9518000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9690000	USD
CY2019Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	5937000	USD
CY2019Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	893213000	USD
CY2019Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	899150000	USD
CY2020Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2905000	USD
CY2020Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	3748000	USD
CY2020Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1029977000	USD
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	1033725000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	3033000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	3925000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	895225000	USD
CY2019Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	899150000	USD
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	1033725000	USD
CY2019Q3	tsbk	Loans Receivable Including Loans Held For Sale And Undisbursed Portion Of Loan Balance Gross LoansReceivableIncludingLoansHeldForSaleAndUndisbursedPortionOfLoanBalanceGross	899150000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	5041000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	5129000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	5251000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	177000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	141000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	732000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	732000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	41000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	681000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	16000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	8000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	5773000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	5861000	USD
CY2020Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	41000	USD
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	5932000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	193000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	149000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	5237000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	5446000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	4731000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	331000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	287000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	700000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	700000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	172000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	606000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	30000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	30000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	5937000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	6146000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	172000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	5337000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	361000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	317000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	3949000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	4200000	USD
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	4304000	USD
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	215000	USD
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	175000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	323000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	323000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	97000	USD
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1603000	USD
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	53000	USD
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	42000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	4272000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	4523000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	97000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	5907000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	268000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	217000	USD
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale Excluding Loans In Process And Deferred Fees Gross Commercial Modified For Covid LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGrossCommercialModifiedForCOVID	5870000	USD
CY2020Q3	tsbk	Number Of Mortgage Loans Modified NumberOfMortgageLoansModified	5	number_of_loans
CY2020Q3	tsbk	Loans Receivable Including Loans Held For Sale Excluding Loans In Process And Deferred Fees Gross Commercial Modified For Covid LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGrossCommercialModifiedForCOVID	5870000	USD
CY2020Q3	tsbk	Loans Receivable Ratio Of Loan Category To Total Loans Modified For Covid LoansReceivableRatioOfLoanCategoryToTotalLoansModifiedForCOVID	1.000
CY2020Q3	tsbk	Tdr Loans Included In Impaired Loans TDRLoansIncludedInImpairedLoans	3071000	USD
CY2020Q3	tsbk	Tdr Loans Commitment To Lend Additional Funds TDRLoansCommitmentToLendAdditionalFunds	0	USD
CY2019Q3	tsbk	Tdr Loans Included In Impaired Loans TDRLoansIncludedInImpairedLoans	3269000	USD
CY2019Q3	tsbk	Tdr Loans Commitment To Lend Additional Funds TDRLoansCommitmentToLendAdditionalFunds	0	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3071000	USD
CY2019Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3269000	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	contract
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	contract
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3	contract
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	40285000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	38935000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17250000	USD
CY2019Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	16105000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23035000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22830000	USD
CY2020	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	377000	USD
CY2019	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	332000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	206000	USD
CY2020	tsbk	Additions To Oreo And Other Repossessed Assets Amount AdditionsToOREOAndOtherRepossessedAssetsAmount		USD
CY2020	tsbk	Additions To Oreo And Other Repossessed Assets Number AdditionsToOREOAndOtherRepossessedAssetsNumber		property
CY2019Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	1683000	USD
CY2019Q3	tsbk	Ore Oand Other Repossessed Assets Number OREOandOtherRepossessedAssetsNumber	12	property
CY2018Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	1913000	USD
CY2018Q3	tsbk	Ore Oand Other Repossessed Assets Number OREOandOtherRepossessedAssetsNumber	12	property
CY2019	tsbk	Additions To Oreo And Other Repossessed Assets Amount AdditionsToOREOAndOtherRepossessedAssetsAmount	293000	USD
CY2019	tsbk	Additions To Oreo And Other Repossessed Assets Number AdditionsToOREOAndOtherRepossessedAssetsNumber	2	property
CY2020	tsbk	Lower Of Cost Or Fair Value Losses LowerOfCostOrFairValueLosses	173000	USD
CY2020	tsbk	Ore Oand Other Repossessed Assets Lower Of Cost Or Fair Value Losses Number OREOandOtherRepossessedAssetsLowerOfCostOrFairValueLossesNumber	0	property
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	229000	USD
CY2019	tsbk	Lower Of Cost Or Fair Value Losses LowerOfCostOrFairValueLosses	24000	USD
CY2019	tsbk	Ore Oand Other Repossessed Assets Lower Of Cost Or Fair Value Losses Number OREOandOtherRepossessedAssetsLowerOfCostOrFairValueLossesNumber	0	property
CY2020	tsbk	Disposition Of Oreo And Other Repossessed Assets Amount DispositionOfOREOAndOtherRepossessedAssetsAmount	460000	USD
CY2019Q3	tsbk	Ore Oand Other Repossessed Assets Number OREOandOtherRepossessedAssetsNumber	12	property
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	35000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	89000	USD
CY2020	tsbk	Disposition Of Oreo And Other Repossessed Assets Number DispositionOfOREOAndOtherRepossessedAssetsNumber	6	property
CY2019	tsbk	Disposition Of Oreo And Other Repossessed Assets Amount DispositionOfOREOAndOtherRepossessedAssetsAmount	524000	USD
CY2019	tsbk	Disposition Of Oreo And Other Repossessed Assets Number DispositionOfOREOAndOtherRepossessedAssetsNumber	3	property
CY2020Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	1050000	USD
CY2020Q3	tsbk	Ore Oand Other Repossessed Assets Number OREOandOtherRepossessedAssetsNumber	6	property
CY2019Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	1683000	USD
CY2019Q3	tsbk	Other Real Estate Owned Foreclosed Residential Real Estate Properties Amount OtherRealEstateOwnedForeclosedResidentialRealEstatePropertiesAmount	150000	USD
CY2018Q3	us-gaap	Goodwill Goodwill	5650000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	9481000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	15131000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2890000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	327000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	377000	USD
CY2020	us-gaap	Lease Cost LeaseCost	377000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	318000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y2M26D
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0222
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	342000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	310000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	313000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	317000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1322000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	2931000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	301000	USD
CY2020Q3	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	219869000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	2630000	USD
CY2020Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	441889000	USD
CY2019Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	296472000	USD
CY2020Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	376899000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	297055000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	164506000	USD
CY2020Q3	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	161225000	USD
CY2019Q3	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	144539000	USD
CY2020Q3	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	158524000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	165655000	USD
CY2020Q3	us-gaap	Deposits Deposits	1358406000	USD
CY2019Q3	us-gaap	Deposits Deposits	1068227000	USD
CY2020Q3	tsbk	Time Deposits250000 Or More TimeDeposits250000OrMore	28945000	USD
CY2019Q3	tsbk	Time Deposits250000 Or More TimeDeposits250000OrMore	29211000	USD
CY2020Q3	tsbk	Brokered Deposits BrokeredDeposits	11303000	USD
CY2019Q3	tsbk	Brokered Deposits BrokeredDeposits	19327000	USD
CY2020Q3	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	102862000	USD
CY2020Q3	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	29355000	USD
CY2020Q3	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	9314000	USD
CY2020Q3	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	8664000	USD
CY2020Q3	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	8329000	USD
CY2020Q3	us-gaap	Time Deposits TimeDeposits	158524000	USD
CY2019	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	840000	USD
CY2018	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	451000	USD
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4635000	USD
CY2020	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	882000	USD
CY2020	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	188000	USD
CY2019	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	106000	USD
CY2018	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	85000	USD
CY2020	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	735000	USD
CY2019	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	1119000	USD
CY2018	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	722000	USD
CY2020	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	2830000	USD
CY2019	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	2500000	USD
CY2018	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	1520000	USD
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4565000	USD
CY2018	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2778000	USD
CY2020	tsbk	Federal Home Loan Bank Advances Ratio Of Maximum Borrowing Capacity To Total Assets FederalHomeLoanBankAdvancesRatioOfMaximumBorrowingCapacityToTotalAssets	0.45
CY2020Q3	tsbk	Accrued Deferred Compensation And Profit Sharing Plans Payable AccruedDeferredCompensationAndProfitSharingPlansPayable	3110000	USD
CY2019Q3	tsbk	Accrued Deferred Compensation And Profit Sharing Plans Payable AccruedDeferredCompensationAndProfitSharingPlansPayable	3131000	USD
CY2020Q3	tsbk	Accrued Interest Payable On Deposits Advances And Repurchase Agreements AccruedInterestPayableOnDepositsAdvancesAndRepurchaseAgreements	274000	USD
CY2019Q3	tsbk	Accrued Interest Payable On Deposits Advances And Repurchase Agreements AccruedInterestPayableOnDepositsAdvancesAndRepurchaseAgreements	333000	USD
CY2020Q3	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	3928000	USD
CY2019Q3	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	4374000	USD
CY2020Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	7312000	USD
CY2019Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	7838000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.245
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.245
CY2018	tsbk	Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit	2210000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5962000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5198000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4900000	USD
CY2020	tsbk	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	0	USD
CY2019	tsbk	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	0	USD
CY2018	tsbk	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	4000	USD
CY2020	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	76000	USD
CY2019	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	703000	USD
CY2018	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	797000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6038000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5901000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
CY2020Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	781000	USD
CY2019Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	1210000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	2440000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	1550000	USD
CY2020Q3	tsbk	Deferred Tax Assets Allowance For Oreo Losses DeferredTaxAssetsAllowanceForOREOLosses	171000	USD
CY2019Q3	tsbk	Deferred Tax Assets Allowance For Oreo Losses DeferredTaxAssetsAllowanceForOREOLosses	218000	USD
CY2020Q3	tsbk	Deferred Tax Assets Otti Credit Impairment DeferredTaxAssetsOTTICreditImpairment	64000	USD
CY2019Q3	tsbk	Deferred Tax Assets Otti Credit Impairment DeferredTaxAssetsOTTICreditImpairment	97000	USD
CY2020Q3	tsbk	Deferred Tax Assets Accrued Interest On Loans DeferredTaxAssetsAccruedInterestOnLoans	8000	USD
CY2019Q3	tsbk	Deferred Tax Assets Accrued Interest On Loans DeferredTaxAssetsAccruedInterestOnLoans	76000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	372000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	520000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	81000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	51000	USD
CY2020Q3	tsbk	Deferred Tax Asset Lease Liability DeferredTaxAssetLeaseLiability	552000	USD
CY2019Q3	tsbk	Deferred Tax Asset Lease Liability DeferredTaxAssetLeaseLiability	0	USD
CY2020Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	69000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	82000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3757000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2594000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	1187000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	1187000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	650000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	506000	USD
CY2020Q3	tsbk	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	778000	USD
CY2019Q3	tsbk	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	494000	USD
CY2020Q3	tsbk	Deferred Tax Liabilities Loan Fees DeferredTaxLiabilitiesLoanFees	428000	USD
CY2019Q3	tsbk	Deferred Tax Liabilities Loan Fees DeferredTaxLiabilitiesLoanFees	267000	USD
CY2020Q3	tsbk	Deferred Tax Liabilities Fhlb Stock Dividends DeferredTaxLiabilitiesFHLBStockDividends	81000	USD
CY2019Q3	tsbk	Deferred Tax Liabilities Fhlb Stock Dividends DeferredTaxLiabilitiesFHLBStockDividends	82000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	98000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	70000	USD
CY2020Q3	tsbk	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	207000	USD
CY2019Q3	tsbk	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	110000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	23000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	15000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	543000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3995000	USD
CY2019Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2731000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	238000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	137000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-33000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-87000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-157000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6365000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6283000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	5500000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	548000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	124000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	345000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	134000	USD
CY2020	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	75000	USD
CY2019	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	73000	USD
CY2018	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	71000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-95000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	123000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	15000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6038000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5901000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	0	shares
CY2019Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	0	shares
CY2018Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	17639000	shares
CY2020Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	415698000	shares
CY2019Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	425281000	shares
CY2018Q3	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	451644000	shares
CY2020Q3	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	415698000	shares
CY2018Q3	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	469283000	shares
CY2019Q3	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	425281000	shares
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	380120	shares
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.23
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	45950	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	31.80
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	40100	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.92
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	5150	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	13.39
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	380820	shares
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.03
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	46840	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	27.14
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	43856	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	9.14
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	5500	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	19.89
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	378304	shares
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.15
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	69150	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	17.01
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	37975	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.31
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	14130	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	25.36
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	395349	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.45
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	640000	USD
CY2020Q3	tsbk	Reserve For Unfunded Loan Commitments ReserveForUnfundedLoanCommitments	384000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	864000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	595000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y4M9D
CY2020Q3	tsbk	Undisbursed Portion Of Construction Loans In Process UndisbursedPortionOfConstructionLoansInProcess	100558000	USD
CY2019Q3	tsbk	Undisbursed Portion Of Construction Loans In Process UndisbursedPortionOfConstructionLoansInProcess	92226000	USD
CY2020Q3	tsbk	Undisbursed Lines Of Credit UndisbursedLinesOfCredit	103030000	USD
CY2019Q3	tsbk	Undisbursed Lines Of Credit UndisbursedLinesOfCredit	80184000	USD
CY2020Q3	tsbk	Commitments To Extend Credit CommitmentsToExtendCredit	38581000	USD
CY2019Q3	tsbk	Commitments To Extend Credit CommitmentsToExtendCredit	16578000	USD
CY2019Q3	tsbk	Reserve For Unfunded Loan Commitments ReserveForUnfundedLoanCommitments	241000	USD
CY2020	tsbk	Employee Severance Compensation Plan Period Following Effective Date Of A Change In Company Control EmployeeSeveranceCompensationPlanPeriodFollowingEffectiveDateOfAChangeInCompanyControl	P12M
CY2020	tsbk	Employee Severance Compensation Plan Eligible Payment Maximum Compensation Term EmployeeSeveranceCompensationPlanEligiblePaymentMaximumCompensationTerm	P18M
CY2020	tsbk	Employee Severance Compensation Plan Annual Compensation Multiplier EmployeeSeveranceCompensationPlanAnnualCompensationMultiplier	2.99
CY2020	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	14284000	USD
CY2018	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24269000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24020000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	16721000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8326600	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8318928	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7334577	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.91
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.89
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24269000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24020000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	16721000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8326600	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8318928	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7334577	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	95886	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	149298	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	191767	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8422486	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8468226	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7526344	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.88
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.84
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.22
CY2020Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13593000	USD
CY2020Q2	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13668000	USD
CY2020Q1	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	14131000	USD
CY2019Q4	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	14191000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	1073000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	1188000	USD
CY2020Q1	us-gaap	Interest Expense InterestExpense	1251000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	1189000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12520000	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12480000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12880000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	13002000	USD
CY2020Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	500000	USD
CY2020Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1000000	USD
CY2020Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	200000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	4715000	USD
CY2020Q2	us-gaap	Noninterest Income NoninterestIncome	4855000	USD
CY2020Q1	us-gaap	Noninterest Income NoninterestIncome	3680000	USD
CY2019Q4	us-gaap	Noninterest Income NoninterestIncome	3938000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	8743000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	8661000	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	8286000	USD
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	8373000	USD
CY2020Q3	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7992000	USD
CY2020Q2	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7674000	USD
CY2020Q1	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	6274000	USD
CY2019Q4	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	8367000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1635000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1463000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1225000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1715000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	6357000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	6211000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	5049000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	6652000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	14384000	USD
CY2019Q2	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	14185000	USD
CY2019Q1	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13841000	USD
CY2018Q4	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13315000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	1233000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	1248000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	1113000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	971000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	13151000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12937000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12728000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	12344000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	3597000	USD
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	3538000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	3940000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	3266000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	8774000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	8967000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	9277000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	8562000	USD
CY2019Q3	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7974000	USD
CY2019Q2	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7508000	USD
CY2019Q1	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7391000	USD
CY2018Q4	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	7048000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1639000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1552000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1277000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1433000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	6335000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	5956000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	6114000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	5615000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66

Files In Submission

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$TSBK
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2019 Q3 Form 10-K Financial Statement

#000093905720000445 Filed on December 09, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TSBK Timberland Bancorp Inc Stock $tsbk

2019 Q3 Form 10-K Financial Statement

#000093905720000445 Filed on December 09, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TSBK
Timberland Bancorp Inc Stock $tsbk