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Loans Receivable Held for Investment - Average of Loans Individually Evaluated for Impairment by Loan Type and Related Interest Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Impaired loans |  |  |  |
Average Recorded Investment | $ 8,493 | $ 10,368 | $ 8,760 | $ 11,410
Cash Basis Interest Income Recognized | 133 | 270 | 447 | 749
Single family |  |  |  |
Impaired loans |  |  |  |
Average Recorded Investment | 616 | 634 | 620 | 638
Cash Basis Interest Income Recognized | 8 | 7 | 23 | 21
Multi-family |  |  |  |
Impaired loans |  |  |  |
Average Recorded Investment | 327 | 631 | 330 | 636
Cash Basis Interest Income Recognized | 5 | 5 | 17 | 28
Commercial real estate |  |  |  |
Impaired loans |  |  |  |
Average Recorded Investment |  |  |  | 397
Cash Basis Interest Income Recognized |  |  |  | 104
Church |  |  |  |
Impaired loans |  |  |  |
Average Recorded Investment | 7,486 | 9,038 | 7,746 | 9,674
Cash Basis Interest Income Recognized | 119 | 256 | 404 | 592
Commercial - other |  |  |  |
Impaired loans |  |  |  |
Average Recorded Investment | 64 | 65 | 64 | 65
Cash Basis Interest Income Recognized | $ 1 | $ 2 | $ 3 | $ 4

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
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