CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net sales	$ 2,662	$ 2,785	$ 7,081	$ 8,694
Cost of revenues	1,493	1,198	4,028	4,456
Gross profit	1,169	1,587	3,053	4,238
Operating expenses
Depreciation and amortization expense	30	48	95	126
Research and development	222	317	825	762
Selling, general and administrative	785	1,260	2,191	2,902
Total operating expenses	1,037	1,625	3,111	3,790
Operating income (loss)	132	(38)	(58)	448
Other expenses
Interest expense	46	71	157	221
Other expenses	11	2	61	153
Total other expenses	57	73	218	374
Income (loss) before income taxes	75	(111)	(276)	74
Income tax expense (benefit)	16	(8)	(9)	24
Net income (loss)	59	(119)	(267)	50
Preferred dividend	(23)	(18)	(69)	(54)
Net income (loss) applicable to common stockholders	36	(137)	(336)	(4)
Condensed consolidated statements of comprehensive income (loss)
Net income (loss)	59	(119)	(267)	50
Other comprehensive income (loss)
Foreign currency translation adjustments	(170)	45	(330)	41
Comprehensive income (loss)	(111)	(74)	(597)	91
Earnings (loss) per share
Net income (loss) applicable to common stockholders	$ 36	$ (137)	$ (336)	$ (4)
Basic and diluted earnings (loss) per share	$ 0	$ (0.01)	$ (0.01)	$ 0
Weighted average basic and diluted shares outstanding	20,484,936	19,345,231	20,051,206	17,683,284