Investments (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Investments [Abstract]
Equity Investments	$ 4,137,000		$ 4,137,000		$ 3,495,000
Equity Method Investment, Ownership Percentage	45.00%		45.00%
Payments to Acquire Interest in Joint Venture			3,000,000
Equity in Income/(Loss) of Nonconsolidated Investment	310,000	287,000	643,000	570,000
Capital Leased Assets, Number of Units	5		5
Capital Lease Length Of Lease Term	9 years 6 months		9 years 6 months
Capital Lease Length Of Renewal Term	5 years 6 months		5 years 6 months
Capital Leases, Monthly Rent			10,000
Capital Leases Balloon Payment In Direct Financing Leases	488,000		488,000
Capital Leases, Net Investment in Direct Financing Leases	$ 933,000		$ 933,000		$ 971,000