Loans Receivable (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Loans Receivable [Line Items]
Loans receivable	$ 357,121,000		$ 263,187,000
Valuation allowance of loans receivable	10,465,000		19,805,000
Impaired loans, with a valuation allowance at cost	12,693,000		29,702,000
Impaired loans, without a valuation allowance at cost	30,357,000		30,357,000
Impaired loans, unpaid principal balance	53,048,000		93,922,000
Decrease in valuation allowance	6,896,000	0
Loans receivable charged off	85,000	0
Loans and Leases Receivable, Impaired, Nonperforming, Nonaccrual of Interest	13,000,000		30,000,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	200,000	100,000
Aggregate Amortized Cost Of Six Largest Loans	225,000,000
Aggregate Fair Value Of Six Largest Loans	208,000,000
Aggregate Cost Basis Of Loans Considered Impaired	41,000,000
Debt Service Coverage Ratio	3.0
Specific Valuation Allowance [Member]
Loans Receivable [Line Items]
Valuation allowance of loans receivable	10,465,000		19,041,000
General Valuation Allowance [Member]
Loans Receivable [Line Items]
Valuation allowance of loans receivable	$ 2,444,000		$ 764,000