Aging of Recorded Investment in Past Due Loans, Including Loans Receivable Held for Sale (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	$ 1,228	$ 3,281
60-89 Days Past Due, Loans receivable	3,192	1,425
Greater than 90 Days Past Due, Loans receivable	26,818	37,090
Total Past Due, Loans receivable	31,238	41,796
Total Loans Not Past Due, Loans receivable	229,492	240,699
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	3,033	1,956
Total Past Due, Loans receivable	3,033	1,956
Total Loans Not Past Due, Loans receivable	3,824	3,839
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	3,004	0
Total Past Due, Loans receivable	3,004	0
Total Loans Not Past Due, Loans receivable	1,004	1,358
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	2,023	1,556
Total Past Due, Loans receivable	2,023	1,556
Total Loans Not Past Due, Loans receivable	2,735	2,744
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 investment | Real estate | Five or more units
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	0	587
60-89 Days Past Due, Loans receivable	0	554
Greater than 90 Days Past Due, Loans receivable	1,676	2,312
Total Past Due, Loans receivable	1,676	3,453
Total Loans Not Past Due, Loans receivable	76,645	79,897
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	0
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	2,874	7,090
Total Past Due, Loans receivable	2,874	7,090
Total Loans Not Past Due, Loans receivable	32,186	34,034
Loans receivable held for investment | Real estate | Church
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due, Loans receivable	279	1,617
60-89 Days Past Due, Loans receivable	3,192	0
Greater than 90 Days Past Due, Loans receivable	12,598	15,689
Total Past Due, Loans receivable	16,069	17,306
Total Loans Not Past Due, Loans receivable	56,252	58,948
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	949	1,077
60-89 Days Past Due, Loans receivable	0	0
Greater than 90 Days Past Due, Loans receivable	1,444	1,489
Total Past Due, Loans receivable	2,393	2,566
Total Loans Not Past Due, Loans receivable	52,803	55,167
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	0
Greater than 90 Days Past Due, Loans receivable	0	273
Total Past Due, Loans receivable	0	273
Total Loans Not Past Due, Loans receivable	456	462
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	1,701	1,711
Loans receivable held for investment | Commercial | Commercial 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	97	0
Total Past Due, Loans receivable	97	0
Total Loans Not Past Due, Loans receivable	1,825	2,115
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	69
Total Past Due, Loans receivable	69	69
Total Loans Not Past Due, Loans receivable	$ 61	$ 35