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3. Loans, TDR Loan Modifications (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) Integer | Sep. 30, 2016 USD ($) Integer | Sep. 30, 2017 USD ($) Integer | Sep. 30, 2016 USD ($) Integer
Single-family residential TDR |  |  |  |
TDR Loans |  |  |  |
Number of Contracts | Integer | 2 | 1 | 2 | 1
Pre-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41
Post-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41
Total real estate TDR loans |  |  |  |
TDR Loans |  |  |  |
Number of Contracts | Integer | 2 | 1 | 2 | 1
Pre-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41
Post-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41
Total TDR Loans |  |  |  |
TDR Loans |  |  |  |
Number of Contracts | Integer | 2 | 1 | 2 | 1
Pre-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41
Post-Modification Outstanding Recorded Investment | $ 22 | $ 41 | $ 22 | $ 41

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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=84173941&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=84173941&loc=SL6953676-111524 + Details
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