Quarterly Financial Information (Unaudited) - Statements of Operations and Comprehensive Loss (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues, net	$ 3,002	$ 2,126	$ 1,761	$ 3,887	$ 6,888	$ 10,884	$ 4,101	$ 749
Cost of product revenues	1,425	2,231	1,527	3,758	5,183	6,836	10,718	282
Gross profit (loss)	1,577	(105)	234	129	1,705	4,048	(6,617)	467
Operating expenses:
Research and development	788	856	1,257	2,113	2,901	3,253	6,246	13,500
Selling and marketing	5,560	7,411	10,553	17,964	23,523	30,369	43,444	23,285
General and administrative	2,815	3,026	3,997	7,023	9,837	11,860	14,698	12,735
Loss on disposition of assets	11,122				11,122	11,122
Total operating expenses	20,285	11,293	15,807	27,100	47,383	56,604	64,388	49,520
Loss from operations	(18,708)	(11,398)	(15,573)	(26,971)	(45,678)	(52,556)	(71,005)	(49,053)
Other income (expense)
Interest income	46	2	1	3	50	80	25	309
Interest expense	(1,004)	(823)	(872)	(1,695)	(2,699)	(3,131)	(3,914)	(3,109)
Unrealized gain on warrant liability	13,736	7,051	1,384	8,435	22,171	25,520	3,827
Total other income (expense), net	12,778	6,230	513	6,743	19,522	22,469	(62)	(2,800)
Loss before benefit from income taxes	(5,930)	(5,168)	(15,060)	(20,228)	(26,156)	(30,087)	(71,067)	(51,853)
Benefit from income taxes			4,675	4,675	4,675	4,675
Net loss	$ (5,930)	$ (5,168)	$ (10,385)	$ (15,553)	$ (21,481)	$ (25,412)	$ (71,067)	$ (51,853)
Net loss per share (basic) (in dollars per share)	$ (0.16)	$ (1.15)	$ (3.33)	$ (4.08)	$ (1.43)	$ (1.18)	$ (29.28)	$ (24.40)
Net loss per share (diluted) (in dollars per share)	$ (0.16)	$ (1.15)	$ (3.33)	$ (4.08)	$ (1.43)	$ (1.18)	$ (29.28)	$ (24.40)
Weighted-average common shares (basic) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534	21,610,947	2,426,821	2,117,077
Weighted-average common shares (diluted) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534	21,610,947	2,426,821	2,117,077
Comprehensive loss:
Net loss	$ (5,930)	$ (5,168)	$ (10,385)	$ (15,553)	$ (21,481)	$ (25,412)	$ (71,067)	$ (51,853)
Other comprehensive income:
Unrealized (loss) gain on marketable securities							(3)	3
Comprehensive loss	(5,930)	(5,168)	(10,385)	(15,553)	(21,481)	$ (25,412)	(71,070)	$ (51,850)
Error Correction, Accounting for Warrants | As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues, net	3,002	2,126	1,761	3,887	6,888		4,101
Cost of product revenues	1,425	2,231	1,527	3,758	5,183		10,718
Gross profit (loss)	1,577	(105)	234	129	1,705		(6,617)
Operating expenses:
Research and development	788	856	1,257	2,113	2,901		6,246
Selling and marketing	5,560	7,411	10,553	17,964	23,523		43,444
General and administrative	2,815	3,026	3,997	7,023	9,837		14,698
Loss on disposition of assets	11,122				11,122
Total operating expenses	20,285	11,293	15,807	27,100	47,383		64,388
Loss from operations	(18,708)	(11,398)	(15,573)	(26,971)	(45,678)		(71,005)
Other income (expense)
Interest income	46	2	1	3	50		25
Interest expense	(1,004)	(823)	(872)	(1,695)	(2,699)		(3,914)
Total other income (expense), net	(958)	(821)	(871)	(1,692)	(2,649)		(3,889)
Loss before benefit from income taxes	(19,666)	(12,219)	(16,444)	(28,663)	(48,327)		(74,894)
Benefit from income taxes			4,675	4,675	4,675
Net loss	$ (19,666)	$ (12,219)	$ (11,769)	$ (23,988)	$ (43,652)		$ (74,894)
Net loss per share (basic) (in dollars per share)	$ (0.53)	$ (2.71)	$ (3.78)	$ (6.29)	$ (2.91)		$ (30.86)
Net loss per share (diluted) (in dollars per share)	$ (0.53)	$ (2.71)	$ (3.78)	$ (6.29)	$ (2.91)		$ (30.86)
Weighted-average common shares (basic) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534		2,426,821
Weighted-average common shares (diluted) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534		2,426,821
Comprehensive loss:
Net loss	$ (19,666)	$ (12,219)	$ (11,769)	$ (23,988)	$ (43,652)		$ (74,894)
Other comprehensive income:
Unrealized (loss) gain on marketable securities							(3)
Comprehensive loss	(19,666)	(12,219)	(11,769)	(23,988)	(43,652)		(74,897)
Error Correction, Accounting for Warrants | Error Correction, Adjustment
Other income (expense)
Unrealized gain on warrant liability	13,736	7,051	1,384	8,435	22,171		3,827
Total other income (expense), net	13,736	7,051	1,384	8,435	22,171		3,827
Loss before benefit from income taxes	13,736	7,051	1,384	8,435	22,171		3,827
Net loss	$ 13,736	$ 7,051	$ 1,384	$ 8,435	$ 22,171		$ 3,827
Net loss per share (basic) (in dollars per share)	$ 0.37	$ 1.56	$ 0.44	$ 2.21	$ 1.48		$ 1.58
Net loss per share (diluted) (in dollars per share)	$ 0.37	$ 1.56	$ 0.44	$ 2.21	$ 1.48		$ 1.58
Weighted-average common shares (basic) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534		2,426,821
Weighted-average common shares (diluted) (in shares)	36,997,836	4,510,219	3,115,211	3,816,569	14,998,534		2,426,821
Comprehensive loss:
Net loss	$ 13,736	$ 7,051	$ 1,384	$ 8,435	$ 22,171		$ 3,827
Other comprehensive income:
Comprehensive loss	$ 13,736	$ 7,051	$ 1,384	$ 8,435	$ 22,171		$ 3,827