Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net sales	$ 11,444	$ 12,302	$ 19,742	$ 27,613
Cost of sales	10,218	10,258	18,425	23,286
Gross profit	1,226	2,044	1,317	4,327
Operating expenses:
Research and development	196	90	719	228
Selling and marketing	417	493	1,293	1,096
General and administrative	981	1,256	2,327	2,523
Total operating expenses	1,594	1,839	4,339	3,847
Income (loss) from operations	(368)	205	(3,022)	480
Net equity income (loss) from foreign joint ventures’ operations:
Equity income (loss) from foreign joint ventures’ operations	347	284	152	400
Foreign joint ventures’ operations related expenses	(98)	(109)	(149)	(207)
Net equity income (loss) from foreign joint ventures’ operations	249	175	3	193
Income (loss) from operations and net equity income from foreign joint ventures’ operations	(119)	380	(3,019)	673
Other income (expense):
Interest expense and other, net	317	(45)	278	(64)
Foreign transaction gain		134		134
Income (loss) before income taxes	198	469	(2,741)	743
Provision for (benefit from) income taxes	47	(78)	(9)	(78)
Net income (loss) before dividends on redeemable convertible preferred stock	151	547	(2,732)	821
Dividends on redeemable convertible preferred stock	(88)	(87)	(176)	(174)
Net income (loss) attributable to common stockholders	$ 63	$ 460	$ (2,908)	$ 647
Earnings (loss) per common share:
Basic	$ 0.01	$ 0.06	$ (0.35)	$ 0.08
Diluted	$ 0.01	$ 0.06	$ (0.35)	$ 0.08
Weighted - average number of common shares outstanding:
Basic	8,292,751	8,250,833	8,277,897	8,235,901
Diluted	8,292,751	8,293,947	8,277,897	8,279,015

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