Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Option Activity (Details)

v3.7.0.1
Stock-based Compensation - Option Activity (Details) - USD ($)
3 Months Ended 12 Months Ended
May 31, 2017
Feb. 28, 2017
May 31, 2016
Nov. 30, 2016
Nov. 30, 2015
Nov. 30, 2014
Options, Outstanding [Roll Forward]            
Beginning Balance, Outstanding (shares) 564,000 564,000   104,000 137,000  
Granted (shares) 0 0   519,000 185,000  
Exercised (shares) 0 0   0 0  
Cancelled or Forfeited (shares) 0 0   59,000 218,000  
Ending Balance, Outstanding (shares) 564,000 564,000   564,000 104,000 137,000
Weighted-Average Exercise Price            
Beginning Balance, Outstanding (usd per share) $ 3.25 $ 3.25   $ 3.41 $ 3.40  
Granted (usd per share)     $ 0 3.23 3.46  
Exercised (usd per share)       0 0  
Cancelled or Forfeited (usd per share)     $ 0 3.42 3.46  
Ending Balance, Outstanding (usd per share) $ 3.25 $ 3.25   $ 3.25 $ 3.41 $ 3.40
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]            
Weighted Average Remaining Term, Ending Balance Outstanding 5 years 10 months 24 days 6 years 1 month 6 days   9 years 2 months 12 days 7 years 7 months 6 days 5 years 4 months 24 days
Aggregate Intrinsic Value, Beginning Balance, Outstanding   $ 0   $ 0 $ 0  
Aggregate Intrinsic Value, Granted       0    
Aggregate Intrinsic Value, Exercised       0 0  
Aggregate Intrinsic Value, Canceled or Forfeited       0 0  
Aggregate Intrinsic Value, Ending Balance, Outstanding       $ 0 $ 0 $ 0