XML 61 R51.htm IDEA: XBRL DOCUMENT
v3.19.1

Loans Receivable And Allowance For Loan Losses - Land and Commercial Business Loans (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2018 USD ($) contract | Mar. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Recorded Investment | $ 3,278 | $ 3,227
Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | contract | 3 |
Pre-modification TDR balance | $ 427 |
Post-modification TDR balance | 338 |
Financing Receivable, Modifications, Recorded Investment | 323 |
Commercial business loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Recorded Investment | $ 170 | $ 155
Commercial business loans | Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | contract | 2 |
Pre-modification TDR balance | $ 183 |
Post-modification TDR balance | 183 |
Financing Receivable, Modifications, Recorded Investment | 170 |
Mortgage loans, land |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Recorded Investment | $ 153 |
Mortgage loans, land | Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | contract | 1 |
Pre-modification TDR balance | $ 244 |
Post-modification TDR balance | 155 |
Financing Receivable, Modifications, Recorded Investment | $ 153 |

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

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tsbk_PortfolioSegmentMember
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_MortgageLoansLandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |