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Loans Modified as Troubled Debt Restructurings by Type of Concession Made and Loan Class (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) Contract | Jun. 30, 2014 USD ($) Contract | Jun. 30, 2015 USD ($) Contract | Jun. 30, 2014 USD ($) Contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract | 1 | 1 | 1 | 6
Pre-Modification Recorded Investment | $ 35 | $ 137 | $ 35 | $ 1,085
Post-Modification Recorded Investment | $ 35 | $ 137 | $ 35 | $ 1,085
Below Market Interest Rate |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 245
Post-Modification Recorded Investment |  |  |  | $ 245
Below Market Interest Rate | Single Family Owner Occupied |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract | 1 | 1 |  |
Pre-Modification Recorded Investment | $ 35 | $ 137 |  |
Post-Modification Recorded Investment | $ 35 | $ 137 |  |
Below Market Interest Rate | Owner Occupied Construction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 245
Post-Modification Recorded Investment |  |  |  | $ 245
Extended Payment Term |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  |  | 2
Pre-Modification Recorded Investment |  |  |  | $ 437
Post-Modification Recorded Investment |  |  |  | $ 437
Extended Payment Term | Single-family Non-owner Occupied |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 303
Post-Modification Recorded Investment |  |  |  | $ 303
Extended Payment Term | Non-farm, Non-residential |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 134
Post-Modification Recorded Investment |  |  |  | $ 134
Below Market Interest Rate And Extended Payment Term | Single-family Non-owner Occupied |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Total Contracts | Contract |  |  | 1 | 3
Pre-Modification Recorded Investment |  |  | $ 35 | $ 403
Post-Modification Recorded Investment |  |  | $ 35 | $ 403

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- 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=49124121&loc=SL6953676-111524 + Details
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