Long-Term Debt (Debt Instrument Covenant For GE) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net loss per financial statements	$ (2,895)	$ (2,401)	$ (10,458)	$ (505)	$ (1,365)	$ 1,699	$ 2,378	$ (4,065)	$ (16,259)	$ (1,353)	$ (10,220)
Interest expense per financial statements - continuing operations	1,697	1,774	1,819	1,729	1,394	1,336	1,330	1,339	7,019	5,399	5,054
GE [Member]
Net loss per financial statements									(16,259)
Net adjustments per loan agreement									20,854
Adjusted EBITDA per loan agreement (A)									4,595
Interest expense per financial statements - continuing operations									7,177
Interest expense per financial statements - discontinued operations									1,357
Total interest expense per financial statements									8,534
Net adjustments per loan agreement									(5,161)
Fixed charges per loan agreement (B)									3,373
Loan balance (A)	26,059								26,059
Value (B)	$ 43,790								$ 43,790
Loan-specific loan to value ratio	59.50%								59.50%
Maximum [Member] | GE [Member]
Required loan specific loan to value ratio									60.00