Net Loss per Share - Antidilutive securities (Details) - shares	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net Loss per Share and Unaudited Pro Forma Net Loss per Share
Securities excluded from computation of earnings per share amount	5,717,410	4,526,090
Restricted stock awards
Net Loss per Share and Unaudited Pro Forma Net Loss per Share
Securities excluded from computation of earnings per share amount	4,143	28,340
Stock option
Net Loss per Share and Unaudited Pro Forma Net Loss per Share
Securities excluded from computation of earnings per share amount	5,713,267	4,497,750