Schedule - Mortgage Loans on Real Estate - SBA 7 (a) Loans (Parenthetical) (Detail) (SBA 7(a) Loans [Member], USD $)	12 Months Ended
	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Loans not secured by real estate	$ 419,000
Loans with subordinate lien positions	306,000
General reserves	633,000
Cost basis of mortgage loans for federal	29,573,000
Texas [Member]
Mortgage Loans on Real Estate [Line Items]
Loans face value	85,000
Loans valuation reserve	19,000
Loans fixed interest percentage	6.00%
Other [Member]
Mortgage Loans on Real Estate [Line Items]
Loans face value	25,000
Loans valuation reserve	$ 2,000
Loans fixed interest percentage	5.25%