CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenues	$ 12,827	$ 12,557
Cost of revenues (exclusive of depreciation and amortization)	7,427	7,598
Gross profit	5,400	4,959
Operating expenses:
Research and development	2,023	921
Sales and marketing	1,936	319
General and administrative	5,377	4,611
Impairment charges	2,317	5,093
Depreciation and amortization	1,321	755
Total operating expenses	12,974	11,699
Loss from operations	(7,574)	(6,740)
Interest and other (income) expense:
Interest expense and other, net	97	311
Gain on extinguishment of debt	0	(165)
Amortization of debt discount	90	269
Interest and other (income) expense, net	187	415
Loss before income taxes	(7,761)	(7,155)
Income tax expense	0	13
Net loss	(7,761)	(7,168)
Preferred stock dividends	27	12
Net loss attributable to common stockholders	$ (7,788)	$ (7,180)
Net loss attributable to common stockholders per share:
Basic and diluted net loss per share (in dollars per share)	$ (1.52)	$ (1.50)
Weighted-average number of common shares:
Basic and diluted (in shares)	5,108	4,795