UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue	$ 1,916	$ 2,304	$ 4,229	$ 5,926
Cost of goods sold	2,147	2,324	4,339	4,795
Gross profit (loss)	(231)	(20)	(110)	1,131
Operating expenses:
Sales and marketing	1,383	1,191	2,499	2,503
Research and product development	1,359	868	2,050	1,762
General and administrative	1,586	845	2,746	1,868
Total operating expenses	4,328	2,904	7,295	6,133
Operating loss	(4,559)	(2,924)	(7,405)	(5,002)
Interest (expense)	(8)	0	(8)	0
Other income, net	3	119	15	297
Loss before income taxes	(4,564)	(2,805)	(7,398)	(4,705)
Provision for income taxes	8	15	8	13
Net loss	$ (4,572)	$ (2,820)	$ (7,406)	$ (4,718)
Basic weighted average shares outstanding (in shares)	1,733,307	1,597,943	1,691,836	1,597,943
Diluted weighted average shares outstanding (in shares)	1,733,307	1,597,943	1,691,836	1,597,943
Basic loss per share (in dollars per share)	$ (2.64)	$ (1.76)	$ (4.38)	$ (2.95)
Diluted loss per share (in dollars per share)	$ (2.64)	$ (1.76)	$ (4.38)	$ (2.95)
Comprehensive loss:
Net loss	$ (4,572)	$ (2,820)	$ (7,406)	$ (4,718)
Unrealized gain on available-for-sale securities, net of tax	0	(3)	0	19
Change in foreign currency translation adjustment	(10)	(1)	(23)	(3)
Comprehensive loss	$ (4,582)	$ (2,824)	$ (7,429)	$ (4,702)