Stock-Based Compensation - RSU activity (Details) - RSUs	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	26,923
Vested (in shares) | shares	(26,923)
Ending balance (in shares) | shares	0
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 1.60
Vested (in dollars per share) | $ / shares	1.60
Ending balance (in dollars per share) | $ / shares	$ 0