XML 67 R53.htm IDEA: XBRL DOCUMENT
v3.3.1.900

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Carrying amount and estimated fair value of financial instruments |  |
Gain On Sale Of Securities Net | $ 23 | $ 2
Valuation allowance for impaired loans | 1,159 | 1,911
Provision for impaired loan losses | 271 | 1,200
Other Real Estate Commercial loan | Level 3 |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value | 2,800 | 3,000
Other Real Estate Residential Loan | Level 3 |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value | 655 | 1,000
Municipal Securities | Level 3 |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value | 4,000 |
Impaired Loans | Level 3 |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value | 2,352 | 11,477
Valuation allowance for impaired loans | 1,200 | 1,900
Other Real Estate | Level 3 |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value | 3,466 | 3,965
Assets fair value adjustment increase (decrease) | $ (743) | $ (1,100)
Minimum |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 0.00% |
Minimum | Impaired Loans |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 0.00% | 0.00%
Minimum | Other Real Estate |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 5.00% | 5.00%
Maximum |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 50.00% |
Maximum | Impaired Loans |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 50.00% | 50.00%
Maximum | Other Real Estate |  |
Carrying amount and estimated fair value of financial instruments |  |
Fair Value Inputs, Discount Rate | 20.00% | 20.00%

X
- Definition Represents the gain realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. + References No definition available. + Details
Name: | thff_GainOnSaleOfSecuritiesNet
Namespace Prefix: | thff_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the provision for impaired loan losses. + References No definition available. + Details
Name: | thff_ProvisionForImpairedLoanLosses
Namespace Prefix: | thff_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
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_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueInputsDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=thff_MunicipalSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=thff_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=thff_OtherRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |