XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.25.2

Loans Receivable And Allowance For Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023
--- | --- | --- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total loans receivable | $ 1,541,073 |  | $ 1,514,304 |  |  |  |
Undisbursed portion of construction loans in process ("LIP") | 76,272 |  | 69,878 |  |  |  |
Deferred loan origination fees, net | 5,427 |  | 5,425 |  |  |  |
Allowance for loan losses | 17,878 | $ 17,525 | 17,478 |  | $ 17,046 | $ 16,818 | $ 15,817
Less: Loans in process, Deferred fees and Allowance for loan losses | 99,577 |  | 92,781 |  |  |  |
Loans receivable, net | $ 1,441,496 |  | $ 1,421,523 | [1] |  |  |
Ratio of loan category to total loans receivable (percent) | 100.00% |  | 100.00% |  |  |  |
Loans held for sale | $ 1,763 |  | $ 0 | [1] |  |  |
Total mortgage loans |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 1,364,788 |  | $ 1,324,259 |  |  |  |
Ratio of loan category to total loans receivable (percent) | 88.60% |  | 87.40% |  |  |  |
One-to four-family |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 317,574 |  | $ 299,123 |  |  |  |
Allowance for loan losses | $ 2,893 | 2,800 | $ 2,632 |  | 2,277 | 2,185 | 2,417
Ratio of loan category to total loans receivable (percent) | 20.60% |  | 19.70% |  |  |  |
Loans held for sale | $ 1,760 |  | $ 0 |  |  |  |
Multi-family |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | 200,418 |  | 177,350 |  |  |  |
Allowance for loan losses | $ 1,580 | 1,315 | $ 1,308 |  | 1,442 | 1,358 | 1,156
Ratio of loan category to total loans receivable (percent) | 13.00% |  | 11.70% |  |  |  |
Commercial real estate |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 607,924 |  | $ 599,219 |  |  |  |
Allowance for loan losses | $ 7,163 | 6,983 | $ 6,934 |  | 7,195 | 6,954 | 7,209
Ratio of loan category to total loans receivable (percent) | 39.50% |  | 39.60% |  |  |  |
Construction-custom & owner/builder (1) |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 128,900 |  | $ 132,101 |  |  |  |
Allowance for loan losses | $ 1,242 | 1,217 | $ 1,328 |  | 1,291 | 1,215 | 750
Ratio of loan category to total loans receivable (percent) | 8.40% |  | 8.70% |  |  |  |
Construction-speculative one-to four-family (1) |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 9,595 |  | $ 11,495 |  |  |  |
Allowance for loan losses | $ 97 | 89 | $ 128 |  | 95 | 142 | 148
Ratio of loan category to total loans receivable (percent) | 0.60% |  | 0.80% |  |  |  |
Construction-commercial (1) |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 15,992 |  | $ 29,463 |  |  |  |
Allowance for loan losses | $ 257 | 358 | $ 537 |  | 393 | 451 | 316
Ratio of loan category to total loans receivable (percent) | 1.00% |  | 1.90% |  |  |  |
Construction-multi-family (1) |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 32,731 |  | $ 28,401 |  |  |  |
Allowance for loan losses | $ 378 | 543 | $ 456 |  | 357 | 478 | 602
Ratio of loan category to total loans receivable (percent) | 2.10% |  | 1.90% |  |  |  |
Construction-land development (1) |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 15,461 |  | $ 17,741 |  |  |  |
Allowance for loan losses | $ 413 | 375 | $ 335 |  | 290 | 255 | 274
Ratio of loan category to total loans receivable (percent) | 1.00% |  | 1.20% |  |  |  |
Land |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Mortgage loans | $ 36,193 |  | $ 29,366 |  |  |  |
Allowance for loan losses | $ 813 | 852 | $ 793 |  | 828 | 840 | 406
Ratio of loan category to total loans receivable (percent) | 2.40% |  | 1.90% |  |  |  |
Total consumer loans |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Consumer loans | $ 49,687 |  | $ 51,042 |  |  |  |
Ratio of loan category to total loans receivable (percent) | 3.20% |  | 3.40% |  |  |  |
Home equity and second mortgage |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Consumer loans | $ 47,511 |  | $ 47,913 |  |  |  |
Allowance for loan losses | $ 411 | 345 | $ 348 |  | 314 | 305 | 519
Ratio of loan category to total loans receivable (percent) | 3.10% |  | 3.20% |  |  |  |
Consumer loans, other |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Consumer loans | $ 2,176 |  | $ 3,129 |  |  |  |
Allowance for loan losses | $ 38 | 33 | $ 39 |  | 45 | 45 | 53
Ratio of loan category to total loans receivable (percent) | 0.10% |  | 0.20% |  |  |  |
Commercial business |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Commercial business loans | $ 126,497 |  | $ 138,743 |  |  |  |
Allowance for loan losses | $ 2,593 | $ 2,615 | $ 2,640 |  | $ 2,519 | $ 2,590 | $ 1,967
Ratio of loan category to total loans receivable (percent) | 8.20% |  | 9.20% |  |  |  |
SBA PPP |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Commercial business loans | $ 101 |  | $ 260 |  |  |  |
Ratio of loan category to total loans receivable (percent) | 0.00% |  | 0.00% |  |  |  |
Total Commercial Loans |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Commercial business loans | $ 126,598 |  | $ 139,003 |  |  |  |
Ratio of loan category to total loans receivable (percent) | 8.20% |  | 9.20% |  |  |  |
[1] | Derived from audited consolidated financial statements.

X
- Definition Loans Receivable, Excluding Loans Held-For-Sale And Loans in Process and Deferred Fees, Gross, Mortgage Loans + References No definition available. + Details
Name: | tsbk_LoansReceivableExcludingLoansHeldForSaleAndLoansInProcessAndDeferredFeesGrossMortgageLoans
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable, Including Loans Held-For-Sale, Excluding Loans in Process and Deferred Fees, Gross + References No definition available. + Details
Name: | tsbk_LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGross
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable, Including Loans Held-For-Sale, Excluding Loans in Process and Deferred Fees, Gross, Consumer + References No definition available. + Details
Name: | tsbk_LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGrossConsumer
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable, Including Loans Held-For-Sale, Excluding Loans in Process and Deferred Fees, Gross, Mortgage Loans + References No definition available. + Details
Name: | tsbk_LoansReceivableIncludingLoansHeldForSaleExcludingLoansInProcessAndDeferredFeesGrossMortgageLoans
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable, Including Loans Held-For-Sale, Excluding Loans in Process and Deferred Fees, Gross, Commercial + References No definition available. + Details
Name: | tsbk_LoansReceivableIncludingLoansHeldForSaleExcludingLoansinProcessandDeferredFeesGrossCommercial
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans receivable in stated category, as a percentage of total loans receivable + References No definition available. + Details
Name: | tsbk_LoansReceivableRatioOfLoanCategoryToTotalLoans
Namespace Prefix: | tsbk_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans and Leases Receivable, Loans in Process, Deferred Income and Allowance + References No definition available. + Details
Name: | tsbk_LoansandLeasesReceivableLoansinProcessDeferredIncomeandAllowance
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of undisbursed portion of financing receivable balance. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-3 + Details
Name: | us-gaap_FinancingReceivableLoanInProcess
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -SubTopic 20 -Topic 310 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481569/310-20-50-3 + Details
Name: | us-gaap_FinancingReceivableUnamortizedLoanFeeCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before valuation allowance, of financing receivable classified as held-for-sale. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477011/948-310-45-1 + Details
Name: | us-gaap_LoansReceivableHeldForSaleAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_MortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_MortgageLoansOneToFourFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_MortgageLoansMultiFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConstructionCustomAndOwnerbuilderMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConstructionSpeculativeOneToFourFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConstructionCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConstructionMultiFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConstructionLandDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_MortgageLoansLandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_ConsumerLoansHomeEquityAndSecondMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_SBAPPPLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tsbk_CommercialAndPPPLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |