Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statements of Operations [Abstract]
Revenues	$ 23,713	$ 14,762
Cost of goods sold	24,574	11,780
Gross (loss) profit	(861)	2,982
Selling, general and administrative expenses	13,696	11,194
Operating loss	(14,557)	(8,212)
Other income (expense):
Interest expense	(96)	(12)
Interest income	50	0
Other income	884	193
Other expense	(16)	(25)
Total other income	822	156
Loss before income taxes	(13,735)	(8,056)
Income tax expense	0	(45)
Loss from continuing operations	(13,735)	(8,101)
Loss from discontinued operations	(216)	0
Net loss	$ (13,951)	$ (8,101)
Basic loss per common share:
Continuing operations (in dollars per share)	$ (0.42)	$ (0.37)
Discontinued operations (in dollars per share)	(0.01)	0
Basic loss per common share (in dollars per share)	(0.43)	(0.37)
Diluted loss per common share:
Continuing operations (in dollars per share)	(0.42)	(0.37)
Discontinued operations (in dollars per share)	(0.01)	0
Diluted loss per common share (in dollars per share)	$ (0.43)	$ (0.37)
Weighted average number of shares outstanding:
Basic (in shares)	32,359,316	22,099,149
Diluted (in shares)	32,359,316	22,099,149