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	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Impaired loans
Average Recorded Investment	$ 14,620	$ 19,994	$ 14,994	$ 21,588
Cash Basis Interest Income Recognized	352	307	582	580
Single family
Impaired loans
Average Recorded Investment	927	1,346	939	1,364
Cash Basis Interest Income Recognized	7	8	14	15
Multi-family
Impaired loans
Average Recorded Investment	966	1,974	1,102	2,305
Cash Basis Interest Income Recognized	11	99	52	115
Commercial real estate
Impaired loans
Average Recorded Investment	1,746	2,897	1,825	3,639
Cash Basis Interest Income Recognized	211	55	267	161
Church
Impaired loans
Average Recorded Investment	10,915	13,695	11,061	14,191
Cash Basis Interest Income Recognized	121	144	247	286
Commercial - other
Impaired loans
Average Recorded Investment	66	82	67	89
Cash Basis Interest Income Recognized	$ 2	$ 1	$ 2	$ 3

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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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