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

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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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