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Significant Accounting Policies (Details Narrative) - USD ($)
 12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Advertising expense $ 246,681 $ 280,348
Bad debt expense $ 0 $ 0
Concentration of Credit Risk The Company had one customer, which accounted for 14% of sales during fiscal 2019. Two customers accounted for 41% of the outstanding accounts receivables at February 28, 2019. The Company had one customer, which accounted for 8% of sales during fiscal 2018. Two customers accounted for 22% of the outstanding accounts receivables at February 28, 2018
Marketable securities including mutual funds $ 2,365,706 $ 4,405,900
Net unrealized gains 1,422  
Accumulated amortization of patents 160,433 $ 149,654
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  
Buildings    
Annual Amortization Expense of Intangible Assets For the Next Five Years    
Property, plant and equipment, estimated useful lives 40 Years  
Domestic Patents    
Useful life of intangible assets 17 years  
Foreign Patents    
Useful life of intangible assets 12 years