CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net Sales	$ 4,958	$ 5,599	$ 10,860	$ 10,418
Cost of goods sold	2,236	2,577	5,280	4,901
Gross margin	2,722	3,022	5,580	5,517
Operating expenses:
Research and development	1,243	1,173	2,341	2,323
Selling, general and administrative	1,415	1,456	2,953	3,144
Provision for business restructuring	0	0	0	13
Total operating expenses	2,658	2,629	5,294	5,480
Operating income (loss)	64	393	286	37
Non-operating income (expense):
Interest income	27	53	58	72
Foreign currency transaction gain (loss)	7	8	(188)	27
Total non-operating income (expense)	34	61	(130)	99
Income (loss) before income taxes	98	454	156	136
Income tax (expense) benefit	2	(7)	(7)	(32)
Net income	$ 100	$ 447	$ 149	$ 104
Basic earnings per share	$ 0.01	$ 0.06	$ 0.02	$ 0.01
Diluted earnings per share	$ 0.01	$ 0.06	$ 0.02	$ 0.01
Weighted-average basic shares	7,894	7,814	7,879	7,801
Weighted-average diluted shares	8,078	7,899	8,062	7,892