Summary of Significant Accounting Policies - Summary of reconciliation of shares used to determine net loss per share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Net income (loss)	$ 32,259	$ (5,208)
Weighted average number of shares - basic	43,765,443	42,710,381
Shares underlying options	2,875,379
Weighted average number of shares - diluted	46,640,822	42,710,381