CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues, net	$ 482	$ 360	$ 1,356	$ 898
Cost of sales	167	184	657	488
Gross profit	315	176	699	410
Operating expenses:
Research and development	451	379	1,288	1,147
Selling, general and administrative	1,411	1,748	4,403	5,259
Total operating expenses	1,862	2,127	5,691	6,406
Loss from operations	(1,547)	(1,951)	(4,992)	(5,996)
Other income (expense):
Interest income	11	4	48	19
Interest expense	(6)	0	(15)	0
Miscellaneous income	29	0	30	0
Other income, net	34	4	63	19
Net loss	(1,513)	(1,947)	(4,929)	(5,977)
Comprehensive loss	$ (1,513)	$ (1,947)	$ (4,929)	$ (5,977)
Weighted average shares outstanding - basic (in shares)	729,400	34,805	586,628	25,315
Weighted average shares outstanding - diluted (in shares)	729,400	34,805	586,628	25,315
Net loss per share - basic (in dollars per share)	$ (2.07)	$ (55.93)	$ (8.40)	$ (236.10)
Net loss per share - diluted (in dollars per share)	$ (2.07)	$ (55.93)	$ (8.40)	$ (236.10)