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Significant Accounting Policies - Intangible Assets (Details Narrative) - USD ($)
6 Months Ended
Aug. 31, 2019
Nov. 30, 2019
Feb. 28, 2019
Accumulated amortization of intangible assets   $ 168,516 $ 160,433
Annual Amortization Expense of Intangible Assets For the Next Five Years      
Annual amortization expense this year   11,000  
Annual amortization expense year two   11,000  
Annual amortization expense year three   11,000  
Annual amortization expense year four   11,000  
Annual amortization expense year five   $ 11,000  
Domestic Patents      
Useful life of intangible assets 17 years    
Foreign Patents      
Useful life of intangible assets 12 years