CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 5,476	$ 7,739
Cost of revenue (exclusive of depreciation and amortization and casualty loss)	3,930	5,021
Gross profit	1,546	2,718
Operating expenses:
Research and development	1,699	2,913
Sales and marketing	1,431	2,195
General and administrative	5,278	6,363
Impairment charges	12,740	305
Casualty loss, net	483	0
Depreciation and amortization	1,903	2,736
Total operating expenses	23,534	14,512
Loss from operations	(21,988)	(11,794)
Interest and other expense
Interest and other expense	19	22
Gain on extinguishment of debt	0	(2,448)
Interest and other income	(59)	(227)
Total interest and other income, net	(40)	(2,653)
Loss before income taxes	(21,948)	(9,141)
Income tax benefit	(7)	(90)
Net loss	(21,941)	(9,051)
Preferred stock dividends	0	1
Undeclared dividends	0	366
Induced conversion of Series A-2 Preferred Stock	0	300
Warrant modification	0	37
Net loss attributable to common stockholders	$ (21,941)	$ (9,755)
Net loss attributable to common stockholders per share:
Basic net loss per share (in dollars per share)	$ (10.62)	$ (5.48)
Diluted net loss per share (in dollars per share)	$ (10.62)	$ (5.48)
Weighted-average number of shares of common stock:
Basic (in shares)	2,065	1,779
Diluted (in shares)	2,065	1,779