Aging of Recorded Investment in Past Due Loans, Including Loans Held for Sale (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	$ 3,281	$ 7,264
60-89 Days Past Due, Loans receivable	1,425	4,756
Greater than 90 Days Past Due, Loans receivable	37,090	44,748
Total Past Due, Loans receivable	41,796	56,768
Total Loans Not Past Due, Loans receivable	240,699	296,705
Loans receivable held for sale | Real estate | One-to-four units
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0
60-89 Days Past Due, Loans receivable	871
Greater than 90 Days Past Due, Loans receivable	6,656
Total Past Due, Loans receivable	7,527
Total Loans Not Past Due, Loans receivable	389
Loans receivable held for sale | Real estate | Five or more units
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	1,956	2,496
Total Past Due, Loans receivable	1,956	2,496
Total Loans Not Past Due, Loans receivable	3,839	3,899
Loans receivable held for sale | Real estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	0	338
Total Past Due, Loans receivable	0	338
Total Loans Not Past Due, Loans receivable	1,358	1,374
Loans receivable held for sale | Real estate | Church
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	1,556	2,778
Total Past Due, Loans receivable	1,556	2,778
Total Loans Not Past Due, Loans receivable	2,744	2,772
Loans receivable held for investment | Real estate | One-to-four units
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	1,077	921
60-89 Days Past Due, Loans receivable	0	2,464
Greater than 90 Days Past Due, Loans receivable	1,489	7,974
Total Past Due, Loans receivable	2,566	11,359
Total Loans Not Past Due, Loans receivable	55,167	65,323
Loans receivable held for investment | Real estate | Five or more units
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	587	1,324
60-89 Days Past Due, Loans receivable	554	63
Greater than 90 Days Past Due, Loans receivable	2,312	3,450
Total Past Due, Loans receivable	3,453	4,837
Total Loans Not Past Due, Loans receivable	79,897	103,324
Loans receivable held for investment | Real estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	2,247
60-89 Days Past Due, Loans receivable	0	525
Greater than 90 Days Past Due, Loans receivable	7,090	5,449
Total Past Due, Loans receivable	7,090	8,221
Total Loans Not Past Due, Loans receivable	34,034	46,038
Loans receivable held for investment | Real estate | Church
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	1,617	2,647
60-89 Days Past Due, Loans receivable	0	1,440
Greater than 90 Days Past Due, Loans receivable	15,689	21,891
Total Past Due, Loans receivable	17,306	25,978
Total Loans Not Past Due, Loans receivable	58,948	63,121
Loans receivable held for investment | Real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	264
Greater than 90 Days Past Due, Loans receivable	273	302
Total Past Due, Loans receivable	273	566
Total Loans Not Past Due, Loans receivable	462	3,224
Loans receivable held for investment | Commercial | Commercial Sports
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	0	0
Total Past Due, Loans receivable	0	0
Total Loans Not Past Due, Loans receivable	1,711	1,996
Loans receivable held for investment | Commercial | Commercial Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	125
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	0	0
Total Past Due, Loans receivable	0	125
Total Loans Not Past Due, Loans receivable	2,115	4,775
Loans receivable held for investment | Consumer | Consumer Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	69	70
Total Past Due, Loans receivable	69	70
Total Loans Not Past Due, Loans receivable	35	38
Loans receivable held for investment | Consumer | Consumer Loan on savings
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable		0
60-89 Days Past Due, Loans receivable		0
Greater than 90 Days Past Due, Loans receivable		0
Total Past Due, Loans receivable		0
Total Loans Not Past Due, Loans receivable		$ 821