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3. Loans, TDR Loan Modifications (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) Integer | Dec. 31, 2015 USD ($) Integer
TDR Loans |  |
Post-Modification Outstanding Recorded Investment | $ 5,900 | $ 8,800
Construction and land development |  |
TDR Loans |  |
Number of Contracts | Integer |  | 1
Pre-Modification Outstanding Recorded Investment |  | $ 216
Post-Modification Outstanding Recorded Investment |  | $ 216
Single-family residential |  |
TDR Loans |  |
Number of Contracts | Integer | 3 | 3
Pre-Modification Outstanding Recorded Investment | $ 124 | $ 288
Post-Modification Outstanding Recorded Investment | $ 121 | $ 271
Total TDR Loans |  |
TDR Loans |  |
Number of Contracts | Integer | 3 | 4
Pre-Modification Outstanding Recorded Investment | $ 124 | $ 504
Post-Modification Outstanding Recorded Investment | $ 121 | $ 487

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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=66008989&loc=SL6953676-111524 + Details
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- 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=66008989&loc=SL6953676-111524 + Details
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- 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=66008989&loc=SL6953676-111524 + Details
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