Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Warrants (Details)

v3.21.2
Shareholders' Equity - Warrants (Details)
6 Months Ended
Jul. 31, 2021
$ / shares
shares
Class of Warrant or Right [Line Items]  
Warrants outstanding 1,714,120
Warrants exercisable 1,714,120
Warrant exercise period 5 years
Exercise Price (Per Share) | $ / shares $ 0.001
Warrants Granted September2016 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 297,619
Warrants exercisable 297,619
Exercise Price (Per Share) | $ / shares $ 29.00
Expiration Date Sep. 19, 2021
Warrants Granted November2016 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 33,386
Warrants exercisable 33,386
Exercise Price (Per Share) | $ / shares $ 30.00
Expiration Date Nov. 10, 2021
Warrants Granted January2017 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 48,930
Warrants exercisable 48,930
Exercise Price (Per Share) | $ / shares $ 17.60
Expiration Date Jan. 23, 2022
Warrants Granted March2017 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 5,000
Warrants exercisable 5,000
Exercise Price (Per Share) | $ / shares $ 19.20
Expiration Date Mar. 16, 2022
Warrants Granted May2019 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 349,998
Warrants exercisable 349,998
Exercise Price (Per Share) | $ / shares $ 15.00
Expiration Date May 02, 2024
Warrants Granted April2020 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 367,197
Warrants exercisable 367,197
Exercise Price (Per Share) | $ / shares $ 2.66
Expiration Date Apr. 14, 2025
Warrants Granted May2020 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 122,398
Warrants exercisable 122,398
Exercise Price (Per Share) | $ / shares $ 2.66
Expiration Date Apr. 14, 2025
Warrants Granted June 2020 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 122,399
Warrants exercisable 122,399
Exercise Price (Per Share) | $ / shares $ 2.66
Expiration Date Apr. 14, 2025
Warrants Granted June122020 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 122,398
Warrants exercisable 122,398
Exercise Price (Per Share) | $ / shares $ 2.66
Expiration Date Apr. 14, 2025
Warrants Granted July 2020 [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding 244,798
Warrants exercisable 244,798
Exercise Price (Per Share) | $ / shares $ 2.66
Expiration Date Apr. 14, 2025