Stock-Based Compensation - Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended	30 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
2014 Plan
Number of Shares
Beginning balance (in shares)	8,071,384
Granted (in shares)	0		0
Exercised (in shares)	0
Forfeited (in shares)	(3,905)
Ending balance (in shares)	8,067,479	8,071,384	8,067,479
Exercisable (in shares)	8,065,212		8,065,212
Unvested (in shares)	2,267		2,267
Weighted- Average Exercise Price
Beginning balance (in dollars per share)	$ 0.30
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	3.50
Ending balance (in dollars per share)	0.30	$ 0.30	$ 0.30
Exercisable (in dollars per share)	0.29		0.29
Unvested (in dollars per share)	$ 3.50		$ 3.50
Additional Disclosures
Options outstanding, weighted-average remaining contractual term	6 years 29 days	6 years 3 months 25 days
Options exercisable, weighted-average remaining contractual term	6 years 29 days
Options unvested, weighted-average remaining contractual term	7 years 6 months 14 days
Options outstanding, aggregate intrinsic value	$ 1,605	$ 5,479	$ 1,605
Options exercisable, aggregate intrinsic value	1,605		1,605
Options unvested, aggregate intrinsic value	$ 0		$ 0
2021 Plan
Number of Shares
Beginning balance (in shares)	346,603
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Ending balance (in shares)	346,603	346,603	346,603
Exercisable (in shares)	202,185		202,185
Unvested (in shares)	144,418		144,418
Weighted- Average Exercise Price
Beginning balance (in dollars per share)	$ 10.45
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Ending balance (in dollars per share)	10.45	$ 10.45	$ 10.45
Exercisable (in dollars per share)	10.45		10.45
Unvested (in dollars per share)	$ 10.45		$ 10.45
Additional Disclosures
Options outstanding, weighted-average remaining contractual term	8 years 3 months	8 years 6 months
Options exercisable, weighted-average remaining contractual term	8 years 3 months
Options unvested, weighted-average remaining contractual term	8 years 3 months
Options outstanding, aggregate intrinsic value	$ 0	$ 0	$ 0
Options exercisable, aggregate intrinsic value	0		0
Options unvested, aggregate intrinsic value	$ 0		$ 0