Summary of significant accounting policies and basis of presentation - Early exercised options (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
|
Summary of significant accounting policies and basis of presentation | ||
Amount of deposit liability related to shares held by employees and nonemployees that were subject to repurchase | $ 2,327 | $ 3,000 |
Total shares legally outstanding | 58,880,054 | 56,633,898 |
Exercised - unvested | (773,394) | (946,586) |
Less: unvested restricted stock | (520,630) | (681,789) |
Total shares issued and outstanding | 57,586,030 | 55,005,523 |