Stockholders' Equity (Deficit) - Schedule of Common Stock Reserved for Future Issuance (Details) - shares	Dec. 31, 2021	Dec. 16, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance	8,968,866		5,109,062	3,706,994
Warrant Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance			116,350	650,590
Montrose Amended and Restated 2013 Stock Option Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance	2,047,269		2,047,269	2,058,619
Montrose Amended & Restated 2017 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance	6,921,597	135,517	2,945,443	997,785