XML 103 R89.htm IDEA: XBRL DOCUMENT
v3.23.3

Deposits: Narrative (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Deposits [Abstract] |  |
Time Deposits, $250,000 Or More | $ 91,714 | $ 21,830
Brokered deposits | $ 38,165 | $ 0

X
- References No definition available. + Details
Name: | tsbk_BrokeredDeposits
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time Deposits, 250,000 Or More + References No definition available. + Details
Name: | tsbk_TimeDeposits250000OrMore
Namespace Prefix: | tsbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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