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3. Loans, TDR Loan Modifications (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) Integer | Dec. 31, 2017 USD ($) Integer
TDR Loans |  |
Post-Modification Outstanding Recorded Investment | $ 4,800 | $ 4,900
Single-family residential |  |
TDR Loans |  |
Number of Contracts | Integer | 2 | 2
Pre-Modification Outstanding Recorded Investment | $ 94 | $ 22
Post-Modification Outstanding Recorded Investment | $ 94 | $ 22
Total TDR Loans |  |
TDR Loans |  |
Number of Contracts | Integer | 2 | 2
Pre-Modification Outstanding Recorded Investment | $ 94 | $ 22
Post-Modification Outstanding Recorded Investment | $ 94 | $ 22

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -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 Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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