STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Total revenues	$ 1,193	$ 1,019
Cost of sales	654	555
Gross profit	539	464
Operating expenses:
Research and development	1,228	1,859
Selling, general and administrative	7,043	8,279
Total operating expenses	8,271	10,138
Loss from operations	(7,732)	(9,674)
Other income (expense):
Interest income	26	7
Interest expense	(4)	(2)
Miscellaneous expense	0	(26)
Other income (expense), net	22	(21)
Net loss	(7,710)	(9,695)
Comprehensive loss	$ (7,710)	$ (9,695)
Weighted average shares outstanding - basic (in shares)	669,861	65,473
Weighted average shares outstanding - diluted (in shares)	669,861	65,473
Loss per share - basic (in dollars per share)	$ (11.51)	$ (148.08)
Loss per share - diluted (in dollars per share)	$ (11.51)	$ (148.08)