Loans Held for Investment Company's Investment in Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Impaired Loans
Contractual Unpaid Principal Balance	$ 3,876	$ 1,836	$ 1,913
Recorded Investment	2,726	1,530	1,472
With Specific Allowance	223	270	0
Without Specific Allowance	2,503	1,260	1,472
Specific Allowance for Impaired Loans	223	104	0
Average Recorded Investment	2,846	2,183	1,878
Interest Income Recognized	46	61	148
Commercial and industrial
Impaired Loans
Contractual Unpaid Principal Balance	2,494	59	0
Recorded Investment	1,684	24	0
With Specific Allowance	223	0	0
Without Specific Allowance	1,461	24	0
Specific Allowance for Impaired Loans	223	0	0
Average Recorded Investment	1,797	18	11
Interest Income Recognized	0	0	0
Commercial owner occupied
Impaired Loans
Contractual Unpaid Principal Balance	437	444	440
Recorded Investment	370	417	388
With Specific Allowance	0	0	0
Without Specific Allowance	370	417	388
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment	373	627	514
Interest Income Recognized	15	25	46
SBA
Impaired Loans
Contractual Unpaid Principal Balance		0	0
Recorded Investment		0	0
With Specific Allowance		0	0
Without Specific Allowance		0	0
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment		9	5
Interest Income Recognized		0	0
Commercial non-owner occupied
Impaired Loans
Contractual Unpaid Principal Balance	693	708	1,217
Recorded Investment	443	514	848
With Specific Allowance	0	0	0
Without Specific Allowance	443	514	848
Specific Allowance for Impaired Loans	0	0	0
Average Recorded Investment	446	938	908
Interest Income Recognized	21	21	85
One-to-four family
Impaired Loans
Contractual Unpaid Principal Balance	215	625	256
Recorded Investment	206	575	236
With Specific Allowance	0	270	0
Without Specific Allowance	206	305	236
Specific Allowance for Impaired Loans	0	104	0
Average Recorded Investment	222	591	440
Interest Income Recognized	10	15	$ 17
Land
Impaired Loans
Contractual Unpaid Principal Balance	37
Recorded Investment	23
With Specific Allowance	0
Without Specific Allowance	23
Specific Allowance for Impaired Loans	0	$ 0
Average Recorded Investment	8
Interest Income Recognized	$ 0

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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+ 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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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