Loans Receivable, net (Details 6) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Troubled debt restructurings
Loans loss reserves	$ 3,413,000	$ 1,812,000	$ 1,609,000	$ 1,257,000
Commercial Mortgage Loans [Member]
Troubled debt restructurings
Troubled debt restructurings requiring reserves, Recorded Investment	10,049,000	5,591,000
Troubled debt restructurings without reserves, Recorded Investment	2,123,000	689,000
Total Troubled Debt Restructurings, Recorded Investment	12,172,000	6,280,000
Troubled debt restructurings requiring reserves, Unpaid Principal Balance	10,531,000	5,730,000
Troubled debt restructurings without reserves, Unpaid Principal Balance	2,172,000	749,000
Total Troubled Debt Restructurings, Unpaid Principal Balance	12,703,000	6,479,000
Number of loans	8	4
Loans loss reserves	1,382,000	236,000
SBA 7(a) loans [Member]
Troubled debt restructurings
Troubled debt restructurings requiring reserves, Recorded Investment	854,000
Troubled debt restructurings without reserves, Recorded Investment	0
Total Troubled Debt Restructurings, Recorded Investment	854,000
Troubled debt restructurings requiring reserves, Unpaid Principal Balance	846,000
Troubled debt restructurings without reserves, Unpaid Principal Balance	0
Total Troubled Debt Restructurings, Unpaid Principal Balance	846,000
Number of loans	1
Loans loss reserves	$ 130,000