Summary of Significant Accounting Policies - Net Loss per Common Share (Details) - shares	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Net Loss per Common Share
Pre-funded warrants outstanding (in shares)	3,301,998
Stock options and warrants
Net Loss per Common Share
Anti-dilutive securities not included in calculation of common shares outstanding (in shares)	2,300,000
Stock options and RSUs
Net Loss per Common Share
Anti-dilutive securities not included in calculation of common shares outstanding (in shares)		1,900,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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