CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net Sales	$ 5,271	$ 5,360	$ 10,029	$ 9,039
Cost of goods sold	2,332	2,419	4,549	4,157
Gross margin	2,939	2,941	5,480	4,882
Operating expenses:
Research and development	1,117	1,427	2,321	2,819
Selling, general and administrative	1,785	1,996	3,592	4,245
Provision for business restructuring	642	0	642	0
Total operating expenses	3,544	3,423	6,555	7,064
Operating income(loss)	(605)	(482)	(1,075)	(2,182)
Non-operating income (expense):
Interest income	56	174	74	207
Foreign currency transaction gain (loss)	(55)	(45)	(57)	(36)
Total non-operating income (expense)	1	129	17	171
Income (loss) before income taxes	(604)	(353)	(1,058)	(2,011)
Income tax (expense) benefit	(20)	296	(25)	276
Net income (loss)	$ (624)	$ (57)	$ (1,083)	$ (1,735)
Basic earnings (loss) per share	$ (0.08)	$ (0.01)	$ (0.14)	$ (0.21)
Weighted-average basic shares	7,762	7,734	7,756	8,250