Equity Incentive Plans - Restricted Stock Units (Details) - RSUs	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Number of RSUs
Nonvested balance, beginning (shares) | shares	3,529,000
Granted (shares) | shares	2,195,000
Vested (shares) | shares	(3,956,000)
Forfeited (shares) | shares	(362,000)
Nonvested balance, ending (shares) | shares	1,406,000
Weighted-Average Grant Date Fair Value Per Share
Nonvested balance, beginning (in dollars per share) | $ / shares	$ 2.04
Granted (in dollars per share) | $ / shares	0.89
Vested (in dollars per share) | $ / shares	1.34
Forfeited (in dollars per share) | $ / shares	2.23
Nonvested balance, ending (in dollars per share) | $ / shares	$ 2.17