Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Warrants - General Information (Details)

Stockholders' Equity - Warrants - General Information (Details)							1 Months Ended			12 Months Ended
	Oct. 01, 2020 USD ($) $ / shares shares	Jun. 16, 2020 USD ($) $ / shares	Dec. 09, 2019 USD ($) $ / shares	Oct. 24, 2019 $ / shares shares	Sep. 04, 2019 $ / shares shares	Feb. 04, 2019 USD ($) $ / shares shares	Jan. 31, 2021 item $ / shares shares	Oct. 31, 2016 $ / shares shares	Apr. 30, 2016 $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2020 USD ($)	Oct. 31, 2017 shares	Apr. 30, 2017 shares
Warrants
Deemed dividend \| $										$ 15,000	$ 87,000
Series A Common Stock Warrants
Warrants
Outstanding warrants (in shares)										271,875
Series A Common Stock Warrants, Expiring 25 October 2021
Warrants
Issued warrants (in shares)									217,875
Exercise price (in dollars per share) \| $ / shares									$ 25.50
Aggregate shares called by warrants (in shares)													217,875
Maturity date									Oct. 25, 2021
Series A Common Stock Warrants, Expiring 22 April 2021
Warrants
Issued warrants (in shares)								54,000
Exercise price (in dollars per share) \| $ / shares								$ 13.40		$ 1.15
Aggregate shares called by warrants (in shares)												54,000
Maturity date								Apr. 22, 2021
Goldman Warrant, Purchase Warrant for Common Shares
Warrants
Issued warrants (in shares)						1				8,542
Exercise price (in dollars per share) \| $ / shares		$ 2.61	$ 3.80			$ 8.86
Aggregate shares called by warrants (in shares)						404,634				463,067
Aggregate shares called by each warrant (in shares)						404,634
Purchase price of warrants \| $						$ 150,000
Date from which warrants exercisable						Aug. 04, 2019
Maturity date						Feb. 04, 2024
Deemed dividend \| $										$ 15,000
Expected proceeds from warrants \| $		$ 1,186,313
Amortization of debt discount (additional debt discount) \| $		$ (100,000)	$ (300,000)
Value of warrants \| $										2,300,000
Goldman 2020 Warrant, Purchase Warrant for Common Shares
Warrants
Outstanding warrants (in shares)	1
Exercise price (in dollars per share) \| $ / shares	$ 4.76
Aggregate shares called by warrants (in shares)	291,295
Aggregate shares called by each warrant (in shares)	291,295
Date from which warrants exercisable	Oct. 01, 2020
Maturity date	Feb. 04, 2024
Private placement, purchase price \| $	$ 10,000
Value of warrants \| $										$ 800,000
September 2019 Pre-Funded Common Stock Warrants
Warrants
Issued warrants (in shares)					440,000
Exercise price (in dollars per share) \| $ / shares				$ 0.001	$ 5.00
Aggregate shares called by warrants (in shares)					440,000
Warrants exercised, shares issued (in shares)				440,000
September 2019 Series D Common Stock Warrants
Warrants
Outstanding warrants (in shares)							75,000
Exercise price (in dollars per share) \| $ / shares					$ 6.12		$ 6.12
Aggregate shares called by warrants (in shares)					765,000
Term					5 years
Date from which warrants exercisable					Apr. 02, 2020
Maturity date					Apr. 02, 2025
Shares as percentage of Registered Direct Offering (as a percent)					75.00%
Number of warrant holders \| item							3
Warrants exercised, (in shares)							690,000
Warrants exercised, shares issued (in shares)							352,279