Annual report pursuant to Section 13 and 15(d)

Income Taxes - Tax Rate Reconciliation (Details)

v3.22.0.1
Income Taxes - Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Pre-tax loss $ (46,884) $ (41,229) $ (38,893)
Federal tax at statutory rate (9,846) (8,658) (8,168)
Stock-based compensation (3,102) 24 172
Revaluation of preferred warrants and option 2,110 1,542 0
Foreign rate difference (5,382) (670) 1,110
Change in valuation allowance 18,389 8,936 5,085
State taxes (1,343) (785) (414)
Other 58 176 230
Provision for (benefit from) income taxes $ 884 $ 565 $ (1,985)