Real Estate Real Estate (Details 1) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Investment Holdings [Line Items]
Real Estate Investment Property, Accumulated Depreciation	$ 11,397,000		$ 10,354,000
Real Estate Accumulated Depreciation, Depreciation Expense	1,757,000	2,105,000
Real Estate Funds [Member]
Investment Holdings [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	1,099,000
Operating Leases, Future Minimum Payments Receivable, in Two Years	1,504,000
Operating Leases, Future Minimum Payments Receivable, in Three Years	1,549,000
Operating Leases, Future Minimum Payments Receivable, in Four Years	1,596,000
Operating Leases, Future Minimum Payments Receivable, in Five Years	1,644,000
Operating Leases, Future Minimum Payments Receivable, Thereafter	$ 329,013,000