Mortgage Loans on Real Estate (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Mortgage Loans on Real Estate (Textual) [Abstract]
New mortgage loans from consolidation of joint venture			$ 22,912,000
New mortgage loans from consolidation of partnership			5,024,000
New mortgage loans sale of real estate owned	1,225,000	1,172,000	3,325,000
Reduction of loans receivable for secured borrowings			7,692,000
Conventional Loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
General reserves	1,468,000
Cost basis of mortgage loans for federal income tax purposes	176,457,000
SBA 7(a) loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
General reserves	410,000
Loans not secured by real estate	547,000
Loans with subordinate lien positions	324,000
Cost basis of mortgage loans for federal income tax purposes	27,526,000
Texas [Member] | Conventional Loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	3,162,000
Loans valuation reserve	403,000
Texas [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	100,000
Loans valuation reserve	23,000
Loans fixed interest percentage	6.00%
Virginia [Member] | Conventional Loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	3,122,000
Loans valuation reserve	144,000
Virginia [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans fixed interest percentage	6.00%
Virginia One [Member] | Conventional Loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	1,045,000
Loans valuation reserve	21,000
Other [Member] | Conventional Loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	3,203,000
Loans valuation reserve	814,000
Wisconsin [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate (Textual) [Abstract]
Loans face value	846,000
Loans valuation reserve	$ 130,000