Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Condensed Consolidated Statements of Operations and Comprehensive Loss [Abstract]
Net sales	$ 2,194	$ 2,075	$ 4,051	$ 3,901
Cost of goods sold	720	928	1,386	1,687
Gross profit	1,474	1,147	2,665	2,214
Operating expenses:
Selling, general and administrative	3,236	4,664	7,842	10,154
Research and development	558	1,505	1,892	2,933
Total operating expenses	3,794	6,169	9,734	13,087
Loss from operations	(2,320)	(5,022)	(7,069)	(10,873)
Other income (expense), net	6	179	(95)	302
Financing Expense	(5,607)	0	(5,607)	0
Change in fair value of warrant liability	198	0	720	(755)
Loss before income taxes	(7,723)	(4,843)	(12,051)	(11,326)
Income tax expense	(2)	(2)	(4)	(4)
Net loss	(7,725)	(4,845)	(12,055)	(11,330)
Deemed dividend attributable to Series J Convertible Preferred Stock	0	0	541	0
Net loss attributable to common shareholders	$ (7,725)	$ (4,845)	$ (11,514)	$ (11,330)
Basic loss per share (in dollars per share)	$ (18.85)	$ (127.65)	$ (40.91)	$ (323.15)
Diluted loss per share (in dollars per share)	$ (18.85)	$ (127.65)	$ (40.91)	$ (323.15)
Weighted average shares outstanding - basic (in shares)	409,690	37,949	294,649	35,060
Weighted average shares outstanding - diluted (in shares)	409,690	37,949	294,649	35,060
Other comprehensive loss:
Foreign currency translation adjustments	$ (2)	$ 1	$ (11)	$ (6)
Total comprehensive loss	$ (7,727)	$ (4,844)	$ (12,066)	$ (11,336)