Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statements of Operations and Comprehensive Loss
Revenues, net	$ 19,593	$ 10,884	$ 4,101
Cost of product revenues	8,978	6,836	10,718
Gross profit	10,615	4,048	(6,617)
Operating expenses:
Research and development	2,225	3,253	6,246
Selling and marketing	17,769	30,369	43,444
General and administrative	10,505	11,860	14,698
Loss on disposition of assets		11,122
Total operating expenses	30,499	56,604	64,388
Loss from operations	(19,884)	(52,556)	(71,005)
Other income (expense)
Interest income	78	80	25
Interest expense	(1,419)	(3,131)	(3,914)
Unrealized gain on warrant liability	6,760	25,520	3,827
Total other income (expense), net	5,419	22,469	(62)
Loss before benefit from income taxes	(14,465)	(30,087)	(71,067)
Benefit from income taxes		4,675
Net loss	$ (14,465)	$ (25,412)	$ (71,067)
Net loss per share (basic) (in dollars per share)	$ (6.71)	$ (58.79)	$ (1,464.20)
Net loss per share (diluted) (in dollars per share)	$ (6.71)	$ (58.79)	$ (1,464.20)
Weighted-average common shares (basic) (in shares)	2,156,726	432,219	48,536
Weighted-average common shares (diluted) (in shares)	2,156,726	432,219	48,536
Comprehensive loss:
Net loss	$ (14,465)	$ (25,412)	$ (71,067)
Other comprehensive income:
Unrealized (loss) on marketable securities			(3)
Comprehensive loss	$ (14,465)	$ (25,412)	$ (71,070)