Quarterly report pursuant to Section 13 or 15(d)

Offerings of Common Stock and Warrants - Warrants - General Information (Details)

Offerings of Common Stock and Warrants - Warrants - General Information (Details)							1 Months Ended	9 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	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) shares
Warrants
Deemed dividend \| $								$ 15,000
Goldman Warrant, Purchase Warrant for Common Shares
Warrants
Issued warrants (in shares)						1
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
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
Issued 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
Exercise price (in dollars per share) \| $ / shares				$ 0.001
Aggregate shares called by warrants (in shares)					440,000
Purchase price per warrant (in dollars per share) \| $ / shares					$ 5.00
Warrants exercised (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