CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 2,132	$ 3,175	$ 4,419	$ 5,909
Cost of revenues	1,166	1,441	2,535	2,938
Gross profit	966	1,734	1,884	2,971
Operating expenses
Depreciation and amortization expense	31	39	65	78
Research and development	341	246	603	445
Selling, general and administrative	600	1,333	1,407	1,962
Total operating expenses	972	1,618	2,075	2,485
Operating income (loss)	(6)	116	(191)	486
Other expenses
Interest expense	54	75	111	150
Other expenses	0	122	50	151
Total other expenses	54	197	161	301
Income (loss) before income taxes	(60)	(81)	(352)	185
Income tax expense (benefit)	13	(31)	(25)	16
Net income (loss)	(73)	(50)	(327)	169
Preferred dividend	(23)	(36)	(46)	(36)
Net income (loss) to common stockholders	(96)	(86)	(373)	133
Condensed statements of comprehensive income (loss)
Net income (loss)	(73)	(50)	(327)	169
Other comprehensive loss
Foreign currency translation adjustments	87	(4)	(160)	(4)
Comprehensive income (loss)	14	(54)	(487)	165
Earnings (loss) per share
Net income (loss) to common stockholders	$ (96)	$ (86)	$ (373)	$ 133
Basic and diluted earnings (loss) per share	$ 0	$ 0	$ (0.02)	$ 0
Weighted average basic and diluted shares outstanding	20,328,495	16,349,483	20,018,269	15,527,624