XML 87 R69.htm IDEA: XBRL DOCUMENT v3.22.1
Capitalization - Common stock Reserved (Details) - shares
Dec. 31, 2021
Dec. 31, 2020
Capitalization    
Conversion of convertible preferred stock 27,799,267 22,520,015
Warrants to purchase convertible preferred stock 1,133,725 1,133,725
Warrants to purchase common stock 74,895 74,895
Shares available for grant under 2018 Stock Plan 363,095 1,861,856
Stock options issued and outstanding under 2018 Stock Plan 5,031,310 3,209,063
Total shares of common stock reserved (34,402,292) (28,799,554)