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Stockholders' Equity (Details)
3 Months Ended
May 31, 2017
$ / shares
shares
Number of Warrant Shares  
Balance, beginning | shares 1,647,670
Granted | shares 550,000
Exercised | shares (22,548)
Expired | shares (314,667)
Balance, ending | shares 1,860,455
Earned and exercisable, Ending | shares 836,705
Unvested, May 31, 2017 | shares 1,023,750
Exercise Price Range Per Share  
Granted $ 5.25
Exercised 0.80
Expired 6.00
Weighted Average Exercise Price  
Balance, beginning 2.91
Granted 5.25
Exercised 0.80
Expired 6.00
Balance, ending 3.11
Earned and exercisable, May 31, 2017 2.82
Unvested, May 31, 2017 3.34
Minimum [Member]  
Exercise Price Range Per Share  
Balance, beginning 0.80
Balance, ending 0.80
Earned and exercisable, May 31, 2017 0.80
Unvested, May 31, 2017 0.80
Maximum [Member]  
Exercise Price Range Per Share  
Balance, beginning 6.00
Balance, ending 6.00
Earned and exercisable, May 31, 2017 6.00
Unvested, May 31, 2017 $ 5.25