Summary of Significant Accounting Policies - Potentially dilutive securities (Details) - shares	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Potentially dilutive securities
Potentially dilutive securities excluded from computation of diluted weighted average shares	2,357,760	1,837,648
Stock Options
Potentially dilutive securities
Potentially dilutive securities excluded from computation of diluted weighted average shares	1,959,437	1,589,243
Restricted stock units
Potentially dilutive securities
Potentially dilutive securities excluded from computation of diluted weighted average shares	309,767	159,849
Common Stock Warrants
Potentially dilutive securities
Potentially dilutive securities excluded from computation of diluted weighted average shares	88,556	88,556