XML 81 R67.htm IDEA: XBRL DOCUMENT
v3.24.3

Investment Securities: Schedule of Other than Temporary Impairments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Held to Maturity |  |  |
Net recoveries on investment securities | $ 12 | $ 9 | $ 22

X
- Definition Other than Temporary Impairment Losses (Recoveries), Investments, Portion Recognized in Earnings, Net + References No definition available. + Details
Name: | tsbk_OtherthanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedinEarningsNet
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_HeldToMaturitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration