Liquidity (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Liquidity [Abstract]
Loss from continuing operations	$ (2,193,000)	$ (1,330,000)	$ (10,926,000)	$ (3,008,000)
Cash and cash equivalents	8,161,000	17,965,000	8,161,000	17,965,000	16,917,000	21,391,000
Net cash (used in) provided by operating activities of continuing operations			(5,146,000)	198,000
Fixed Charge Coverage Ratio, contractual minimum	1.1		1.1
Outstanding Balance Maximum, Fixed Charge Coverage Ratio Applicability	0		0
Cash on Deposit Minimum, Fixed Charge Coverage Ratio Applicability	6,000,000		6,000,000
Fixed Charge Coverage Ratio	(17.9)		(17.9)
Revenues	$ 33,671,000	$ 38,157,000	$ 107,864,000	$ 116,662,000
Revenue decline compared to prior year period, percentage	(11.80%)		(7.50%)