Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Current assets of disposal group held for sale [Abstract]
Accounts receivable, net	$ 0		$ 0		$ 15
Inventories	0		0		200
Prepaid expenses and other current assets	4		4		10
Current assets of disposal group held for sale	4		4		225
Current liabilities of disposal group held for sale [Abstract]
Accounts payable	14		14		39
Accrued expenses and other current liabilities	27		27		53
Liabilities of disposal group held for sale, net of current portion	41		41		92
Liabilities of disposal group held for sale, net of current portion [Abstract]
Other long-term liabilities	2,000		2,000		2,000
Liabilities of disposal group held for sale, net of current portion	2,000		2,000		2,000
Net sales and operating results classified as discontinued operations [Abstract]
Net sales	1	647	169	2,651
Operating costs and expenses:
Cost of sales	0	1,009	262	3,154
Selling, general and administrative	50	149	308	369
Total operating costs and expenses	50	1,158	570	3,523
Loss from discontinued operations	$ (49)	$ (511)	$ (401)	$ (872)