Loans Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Loans Receivable [Line Items]
Total loans receivable, at cost	$ 263,187,000	$ 353,583,000
Valuation allowance	19,805,000	19,675,000
Impaired loans: With a valuation allowance, at cost	29,702,000	31,855,000
Impaired loans: Without a valuation allowance, at cost	30,357,000	30,685,000
Imparied loans: Unpaid principal balance	93,922,000	96,240,000
Increase in valuation allowance	130,000	6,090,000
Loans receivable charged off	759,000	140,000
Loans in nonaccrual status	30,000,000	21,000,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	805,000	340,000
Aggregate amortized cost of six largest loans	187,000,000
Aggregate fair value of six largest loans	166,000,000
Aggregate cost basis of loans considered impaired, three of the largest six loans	58,000,000
Debt service coverage ratio	3.0
Specific Valuation Allowance [Member]
Loans Receivable [Line Items]
Valuation allowance	19,041,000	18,865,000
General Valuation Allowance [Member]
Loans Receivable [Line Items]
Valuation allowance	$ 764,000	$ 810,000