CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Revenues, net	$ 485	$ 415
Cost of sales	172	280
Gross profit	313	135
Operating expenses:
Research and development	418	370
Selling, general and administrative	1,558	1,608
Total operating expenses	1,976	1,978
Loss from operations	(1,663)	(1,843)
Other income (expense):
Interest income	3	15
Interest expense	(5)	(4)
Other income (expense), net	(2)	11
Net loss	(1,665)	(1,832)
Comprehensive loss	$ (1,665)	$ (1,832)
Weighted average shares outstanding - basic (in shares)	1,299,971	514,453
Weighted average shares outstanding - diluted (in shares)	1,299,971	514,453
Net loss per share - basic (in dollars per share)	$ (1.28)	$ (3.56)
Net loss per share - diluted (in dollars per share)	$ (1.28)	$ (3.56)