Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTIES - Additional Information (Detail)

v3.7.0.1
RELATED PARTIES - Additional Information (Detail) - USD ($)
9 Months Ended 12 Months Ended
Feb. 28, 2017
Feb. 29, 2016
May 31, 2016
May 31, 2015
Related Party Transaction [Line Items]        
Share-based Compensation, Total $ 180,333 $ 4,044,171    
Common Stock, Par or Stated Value Per Share $ 0.00001   $ 0.00001  
Mr. Elser        
Related Party Transaction [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       100,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price       $ 6.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value       $ 625,000
Share-based Compensation, Total       $ 625,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       5 years
Common Stock, Par or Stated Value Per Share       $ 0.00001
Mr. Warshaw | Chief Financial Officer And Director        
Related Party Transaction [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     250,000 100,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price     $ 5.41 $ 6.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value     $ 1,352,500 $ 625,000
Share-based Compensation, Total     $ 1,352,500 $ 625,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     5 years 5 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights     vested 50% on the date of issuance and 50% on the one year anniversary.