Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net sales	$ 1,235	$ 2,547	$ 4,753	$ 8,808
Cost of sales	2,097	3,006	7,539	8,941
Gross loss	(862)	(459)	(2,786)	(133)
Selling, general and administrative expenses	1,145	1,342	3,707	4,414
Research and development expense	185	200	568	605
Provision for bad debt expense	341	380	1,131	386
Asset impairment expense	514		514
Operating loss	(3,047)	(2,381)	(8,706)	(5,538)
Interest (expense) income, net	(14)	6	(26)	21
Other income, net	1,686	880	1,617	2,083
Gain/(loss) on disposal of fixed assets	155	(38)	156	(421)
Foreign currency transaction (loss) gain	(226)	9	(226)	(153)
Loss before income tax (benefit) expense	(1,446)	(1,524)	(7,185)	(4,008)
Income tax (benefit) expense	0	(221)	(306)	50
Net loss	(1,446)	(1,303)	(6,879)	(4,058)
Other comprehensive loss:
Foreign currency translation (net of tax effect of $(46), $(12), $(63) and $(48), respectively)	(119)	(151)	(247)	(239)
Other comprehensive loss	(119)	(151)	(247)	(239)
Comprehensive loss	$ (1,565)	$ (1,454)	$ (7,126)	$ (4,297)
Net loss per share (Note 3):
Basic (in dollars per share)	$ (0.07)	$ (0.07)	$ (0.34)	$ (0.21)
Diluted (in dollars per share)	$ (0.07)	$ (0.07)	$ (0.34)	$ (0.21)
Weighted–average shares outstanding (Note 3):
Basic (in shares)	20,152,029	20,076,021	20,152,029	19,684,004
Diluted (in shares)	20,152,029	20,076,021	20,152,029	19,684,004