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Interest and Other Finance Costs (Details) - USD ($)
3 Months Ended 9 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2019
Nov. 30, 2018
Interest And Other Finance Costs        
Interest on long-term debt $ 14,778 $ 13,825 $ 41,840 $ 40,305
Interest on convertible notes 98,000 0 313,433 0
Accretion expense 549,090 0 1,584,977 0
Amortization of deferred finance costs 19,885 0 86,212 0
Revaluation of warrants 0 0 8,483 0
Loss on revaluation of foreign exchange contracts 10,881 0 10,881 0
Gain on conversion of November 2018 Notes 0 0 (232,565) 0
Other 393 1,058 3,830 812
Interest and other finance costs $ 693,027 $ 14,883 $ 1,817,091 $ 41,117