Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements of Operations [Abstract]
Revenue	$ 8,307	$ 10,207
Cost of goods sold	11,682	13,615
Gross loss	(3,375)	(3,408)
Operating expenses:
General and administrative	2,190	2,306
Sales and marketing	349	456
Research and development	382	476
Loss from operations	(6,296)	(6,646)
Other income:
Interest income	13	33
Interest expense	(23)
Realized gain (loss) on foreign currency translation	(112)	342
Total other (expense) income	(122)	375
Loss before income taxes	(6,418)	(6,271)
Income tax benefit	3,042	2,904
Net loss	$ (3,376)	$ (3,367)
Net loss per common share
Basic	$ (0.15)	$ (0.15)
Diluted	$ (0.15)	$ (0.15)
Weighted average common shares outstanding used in computing net loss per common share basic and diluted	22,550,378	22,514,539