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Stockholder's Equity (Deficit) - Schedule of Common Stock Reserved for Future Issuance (Details) - shares | Mar. 31, 2021 | Mar. 31, 2020
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Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 5,992,019 | 3,766,994
Warrants |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance |  | 650,590
Montrose 2013 Stock Incentive Plan |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 2,047,269 | 2,058,619
Montrose 2017 Stock Incentive Plan |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 3,944,750 | 1,057,785

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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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