CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenues	$ 76	$ 134	$ 181	$ 223
Cost of revenues	14	62	25	115
Gross profit	62	72	156	108
Operating expenses:
Selling, general and administrative, including stock based compensation of $462 and $811 for the three months ended June 30, 2024 and 2023, respectively, $909 and $1,043 for the six months ended June 30, 2024 and 2023, respectively	2,320	2,816	4,803	4,887
Impairment of intangible assets	0	6,131	0	6,131
Research and development, including stock based compensation of $91 and $2 for the three months ended June 30, 2024 and 2023, respectively, $131 and $630 for the six months ended June 30, 2024 and 2023, respectively	633	498	1,276	2,023
Total operating expenses	2,953	9,445	6,079	13,041
Loss from operations	(2,891)	(9,373)	(5,923)	(12,933)
Other income (expenses)
Interest expense (income)	(32)	3	(35)	(43)
Change in fair value of derivative liability	0	0	0	27
Other income (expenses)	1	287	(1)	715
Total other expenses	(31)	290	(36)	699
Loss before provision for income taxes	(2,922)	(9,083)	(5,959)	(12,234)
Provision for income taxes	0	0	0	0
Net loss	(2,922)	(9,083)	(5,959)	(12,234)
Deemed dividend related to warrant resets	0	0	0	(763)
Net loss attributable to common stockholders	$ (2,922)	$ (9,083)	$ (5,959)	$ (12,997)
Basic net loss per common share	$ (0.12)	$ (0.49)	$ (0.25)	$ (0.71)
Diluted net loss per common share	$ (0.12)	$ (0.49)	$ (0.25)	$ (0.71)
Weighted-average number of shares used basic per share amounts	24,765,307	18,468,741	23,653,211	18,200,197
Weighted-average number of shares used diluted per share amounts	24,765,307	18,468,741	23,653,211	18,200,197