Loans and Allowance for Losses (Details4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Aging categories of performing loans and nonaccrual loans
Recorded Investment 90 Days or more and Accruing	$ 0	$ 0	$ 0
Wholly-Owned First
Aging categories of performing loans and nonaccrual loans
30-59 Days Past Due	5,470		6,038
60-89 Days Past Due	959		0
Greater Than 90 Days	814		4,235
Total Past Due	7,243		10,273
Current	95,344		98,642
Total Loans	102,587		108,915
Recorded Investment 90 Days or more and Accruing	0		0
Wholly-Owned Junior
Aging categories of performing loans and nonaccrual loans
30-59 Days Past Due	3,812		3,887
60-89 Days Past Due	0		0
Greater Than 90 Days	0		722
Total Past Due	3,812		4,609
Current	6,230		11,936
Total Loans	10,042		16,545
Recorded Investment 90 Days or more and Accruing	0		0
Participation First
Aging categories of performing loans and nonaccrual loans
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
Greater Than 90 Days	2,611		6,546
Total Past Due	2,611		6,546
Current	45,973		46,556
Total Loans	48,584		53,102
Recorded Investment 90 Days or more and Accruing	0		0
Participation Junior
Aging categories of performing loans and nonaccrual loans
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
Greater Than 90 Days	0		0
Total Past Due	0		0
Current	1,006		1,006
Total Loans	1,006		1,006
Recorded Investment 90 Days or more and Accruing	0		0
Financing Receivable [Member]
Aging categories of performing loans and nonaccrual loans
30-59 Days Past Due	9,282		9,925
60-89 Days Past Due	959		0
Greater Than 90 Days	3,425		11,503
Total Past Due	13,666		21,428
Current	148,553		158,140
Total Loans	162,219		179,568
Recorded Investment 90 Days or more and Accruing	$ 0		$ 0