Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations [Line Items]
Tangible Asset Impairment Charges		$ 200	$ 0	$ 312
Loss from discontinued operations
Net revenue			40	232
Cost of goods sold			142	2,373
Gross profit			(102)	(2,141)
Operating expenses:
Research and development			0	741
Sales and marketing			0	56
General and administrative			350	700
Restructuring charge			0	772
Total operating expenses			350	2,269
Operating loss			(452)	(4,410)
Other income (expense), net			0	(1)
Loss from discontinued operations	(18)	(280)	(452)	(4,411)
Impairment of Intangible Assets (Excluding Goodwill)		1,600	0	1,647
AssuredUVS [Member]
Loss from discontinued operations
Net revenue	18	26
Cost of goods sold	0	70
Gross profit	18	(44)
Operating expenses:
Research and development	0	(20)
Sales and marketing	0	0
General and administrative	36	204
Restructuring charge	0	53
Total operating expenses	36	237
Operating loss	(18)	(281)
Other income (expense), net	0	1
Loss from discontinued operations	$ (18)	$ (280)