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Stockholders' Equity - Stock option grants (Details) - $ / shares
12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Information, at date of issuance, regarding stock option grants    
Weighted Average Exercise Price $ 2.66 $ 1.12
Exercise Price Equals Market Price    
Information, at date of issuance, regarding stock option grants    
Shares 55,000  
Weighted Average Exercise Price $ 2.66  
Weighted Average Fair Value $ .90