XML 74 R56.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation - Summary of Employee Restricted Stock Activity (Details) - Restricted Common Stock - Employees
12 Months Ended
Dec. 31, 2021
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Shares, Unvested restricted common stock, Beginning balance | shares 228,200
Shares, Forfeited | shares (38,200)
Shares, Unvested restricted common stock, Ending balance | shares 190,000
Weighted Average Grant Date Fair Value, Unvested restricted common stock, Beginning balance | $ / shares $ 8.13
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 8.13
Weighted Average Grant Date Fair Value, Unvested restricted common stock, Ending balance | $ / shares $ 8.13