Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Product revenue	$ 430	$ 103
Operating expenses:
Cost of sales	270	24
Research and development	2,310	3,062
Sales and marketing	554	294
General and administrative	5,022	5,713
Total operating expenses	8,156	9,093
Operating loss	(7,726)	(8,990)
Other (expense) income, net:
Interest income	32	64
Interest expense	(38)	(14)
Other expense	0	(5)
Total other (expense) income, net	(6)	45
Net loss	(7,732)	(8,945)
Preferred stock dividends	0	(77)
Net loss attributable to common stockholders	$ (7,732)	$ (9,022)
Basic and diluted net loss per share attributable to common stockholders (in dollars per share)	$ (0.52)	$ (0.67)
Weighted average common shares outstanding, basic and diluted (in shares)	14,789,332	13,455,666
Comprehensive loss:
Net loss	$ (7,732)	$ (8,945)
Foreign currency translation adjustments	(6)	0
Comprehensive loss	(7,738)	(8,945)
Preferred stock dividends	0	(77)
Comprehensive loss attributable to common stockholders	$ (7,738)	$ (9,022)