CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Revenue	$ 956	$ 1,333	$ 1,994	$ 2,865
Cost of revenue (exclusive of depreciation and amortization and casualty loss)	834	926	1,596	1,959
Gross profit	122	407	398	906
Operating expenses (gains):
Research and development	5	398	11	1,402
Sales and marketing	(58)
Sales and marketing		317	160	879
General and administrative	1,577	1,185	2,746	2,875
Impairment charges	2	6,408	2	7,546
Casualty loss, net of insurance proceeds	(400)	533	(400)	533
Depreciation and amortization	87	599	173	1,226
Total operating expenses	1,213	9,440	2,692	14,461
Loss from operations	(1,091)	(9,033)	(2,294)	(13,555)
Interest and other expense, net	6	0	11	6
Other income	(48)	0	(75)	0
Interest and other (income) expense, net	(42)	0	(64)	6
Loss before income taxes	(1,049)	(9,033)	(2,230)	(13,561)
Income tax expense	0	0	38	11
Net loss	(1,049)	(9,033)	(2,268)	(13,572)
Preferred stock dividends	149	0	149	0
Induced conversion of warrants	751	0	751	0
Warrant Modification	0	0	25	0
Net loss attributable to common stockholders	$ (1,949)	$ (9,033)	$ (3,193)	$ (13,572)
Net loss attributable to common stockholders per share:
Basic net loss per share (in dollars per share)	$ (0.78)	$ (4.37)	$ (1.40)	$ (6.57)
Diluted net loss per share (in dollars per share)	$ (0.78)	$ (4.37)	$ (1.40)	$ (6.57)
Weighted-average number of shares of common stock:
Basic (in shares)	2,487	2,065	2,277	2,065
Diluted (in shares)	2,487	2,065	2,277	2,065