CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Revenue	$ 13,104	$ 17,705
Cost of revenue	10,176	13,590
Gross profit	2,928	4,115
Operating expenses:
Selling, general and administrative	3,734	4,948
Research and development	157	210
Restructuring charges	808	10
Loss on impairment	0	4,302
Depreciation	76	108
Amortization of definite-lived intangible assets	340	670
Total operating expenses	5,115	10,248
Operating loss	(2,187)	(6,133)
Interest expense, net	(54)	(241)
Gain (loss) on derivative instruments, net	0	(43)
Other income, net	1	29
Loss before income taxes	(2,240)	(6,388)
Provision for income taxes	(35)	(130)
Net loss	$ (2,205)	$ (6,258)
Net loss per common share - basic (in dollars per share)	$ (0.11)	$ (0.31)
Net loss per common share - diluted (in dollars per share)	$ (0.11)	$ (0.31)
Weighted average shares outstanding used to compute net loss per share - basic (in shares)	20,628,669	20,342,933
Weighted average shares outstanding used to compute net loss per share - diluted (in shares)	20,628,669	20,342,933