CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenues, net	$ 415	$ 233
Cost of sales	280	141
Gross profit	135	92
Operating expenses:
Research and development	370	387
Selling, general and administrative	1,608	1,750
Total operating expenses	1,978	2,137
Loss from operations	(1,843)	(2,045)
Other income (expense):
Interest income	15	8
Interest expense	(4)	0
Other income, net	11	8
Net loss	(1,832)	(2,037)
Comprehensive loss	$ (1,832)	$ (2,037)
Weighted average shares outstanding - basic (in shares)	5,144,531	171,047
Weighted average shares outstanding - diluted (in shares)	5,144,531	171,047
Net loss per share - basic (in dollars per share)	$ (0.36)	$ (11.91)
Net loss per share - diluted (in dollars per share)	$ (0.36)	$ (11.91)