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, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Impaired loans
Average Recorded Investment	$ 12,841	$ 18,949	$ 14,184	$ 20,667
Cash Basis Interest Income Recognized	452	283	1,034	863
Single family
Impaired loans
Average Recorded Investment	780	1,239	878	1,317
Cash Basis Interest Income Recognized	232	42	246	57
Multi-family
Impaired loans
Average Recorded Investment	804	1,461	997	2,051
Cash Basis Interest Income Recognized	92	10	144	125
Commercial real estate
Impaired loans
Average Recorded Investment	425	2,766	1,277	3,375
Cash Basis Interest Income Recognized	4	56	271	217
Church
Impaired loans
Average Recorded Investment	10,766	13,410	10,966	13,841
Cash Basis Interest Income Recognized	122	174	369	460
Commercial - other
Impaired loans
Average Recorded Investment	66	73	66	83
Cash Basis Interest Income Recognized	$ 2	$ 1	$ 4	$ 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=49124121&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=49124121&loc=d3e5258-111524

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- Definition

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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