XML 17 R32.htm IDEA: XBRL DOCUMENT
v3.20.1

Allowance for Loan Losses (Details Textual) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Allowance for loan losses |  |
Fair value | $ 9,731,000 | $ 7,113,000
Minimum outstanding balance of non-homogeneous loans to be individually evaluated as to credit risk | 100,000 |
Commercial & Industrial |  |
Allowance for loan losses |  |
Fair value | 99,000 | 100,000
Farmland |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Non Farm, Non Residential |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Agriculture |  |
Allowance for loan losses |  |
Fair value | 0 |
All Other Commercial |  |
Allowance for loan losses |  |
Fair value | 0 | 0
First Liens |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Home Equity |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Junior Liens |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Multifamily |  |
Allowance for loan losses |  |
Fair value | 0 | 0
All Other Residential |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Motor Vehicle |  |
Allowance for loan losses |  |
Fair value | 0 | 0
All Other Consumer |  |
Allowance for loan losses |  |
Fair value | 0 | 0
Nonperforming Financing Receivable [Member] |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 1,490,000 | 1,662,000
Nonaccrual | 12,011,000 | 9,546,000
Nonperforming Financing Receivable [Member] | Commercial & Industrial |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 21,000 | 0
Nonaccrual | 2,882,000 | 2,191,000
Nonperforming Financing Receivable [Member] | Farmland |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 6,000 | 5,000
Nonaccrual | 1,534,000 | 2,410,000
Nonperforming Financing Receivable [Member] | Non Farm, Non Residential |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 0 | 0
Nonaccrual | 3,980,000 | 441,000
Nonperforming Financing Receivable [Member] | Agriculture |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 0 | 0
Nonaccrual | 3,000 | 485,000
Nonperforming Financing Receivable [Member] | All Other Commercial |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 0 | 0
Nonaccrual | 62,000 | 114,000
Nonperforming Financing Receivable [Member] | First Liens |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 1,138,000 | 625,000
Nonaccrual | 2,604,000 | 2,876,000
Nonperforming Financing Receivable [Member] | Home Equity |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 136,000 | 12,000
Nonaccrual | 43,000 | 61,000
Nonperforming Financing Receivable [Member] | Junior Liens |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 21,000 | 51,000
Nonaccrual | 99,000 | 175,000
Nonperforming Financing Receivable [Member] | Multifamily |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 0 | 0
Nonaccrual | 0 | 0
Nonperforming Financing Receivable [Member] | All Other Residential |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 41,000 | 738,000
Nonaccrual | 48,000 | 203,000
Nonperforming Financing Receivable [Member] | Motor Vehicle |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 115,000 | 227,000
Nonaccrual | 233,000 | 138,000
Nonperforming Financing Receivable [Member] | All Other Consumer |  |
Allowance for loan losses |  |
Loans Past Due Over 90 Day Still Accruing | 12,000 | 4,000
Nonaccrual | $ 523,000 | $ 452,000

X
- Definition Represents the minimum outstanding balance of loans to be individually reviewed and classified as to credit risk. Homogeneous loans (at all levels of outstanding balances) are not reviewed individually, but rather as part of a group. + References No definition available. + Details
Name: | thff_LoansAndLeasesReceivableMinimumOutstandingBalanceToBeIndividuallyEvaluated
Namespace Prefix: | thff_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |