Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangibles assets	$ 578,000	$ 639,000
Accumulated amortization	16,914,000		16,335,000
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful life	30 years
Accumulated amortization	13,335,000		12,873,000
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful life	45 years
Accumulated amortization	3,174,000		3,059,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful life	10 years
Accumulated amortization	405,000		403,000
Acquired Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 259,000	$ 270,000