Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Discontinued Operations [Line Items]
Tangible Asset Impairment Charges		$ 200	$ 0	$ 244
Loss from discontinued operations
Net revenue			22	206
Cost of goods sold			142	2,303
Gross profit			(120)	(2,097)
Operating expenses:
Research and development			0	762
Sales and marketing			0	56
General and administrative			323	486
Restructuring charge			(10)	729
Total operating expenses			313	2,033
Operating loss			(433)	(4,130)
Other income (expense), net			0	1
Loss from discontinued operations	(12)	(2,103)	(433)	(4,131)
Impairment of Intangible Assets (Excluding Goodwill)		1,600	0	1,647
AssuredUVS [Member]
Loss from discontinued operations
Net revenue	2	60
Cost of goods sold	11	1,766
Gross profit	(9)	(1,706)
Operating expenses:
Research and development	0	17
Sales and marketing	0	0
General and administrative	3	308
Restructuring charge	0	72
Total operating expenses	3	397
Operating loss	(12)	(2,103)
Other income (expense), net	0	0
Loss from discontinued operations	$ (12)	$ (2,103)