Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.10.0.1
Subsequent Events (Details)
 3 Months Ended 12 Months Ended
Jun. 20, 2018
USD ($)
employee
$ / shares
shares
May 31, 2018
shares
Feb. 28, 2018
$ / shares
shares
Nov. 30, 2017
$ / shares
shares
Subsequent Event [Line Items]        
Granted (shares) | shares   0 7,500 307,500
Granted (usd per share) | $ / shares     $ 3.15 $ 3.30
Subsequent Event        
Subsequent Event [Line Items]        
Number of employees granted options | employee 14      
Granted (shares) | shares 270,000      
Granted (usd per share) | $ / shares $ 2.85      
Annual award vesting percentage 20.00%      
Non-Executive Director | Subsequent Event        
Subsequent Event [Line Items]        
Annual directors' compensation $ 20,000      
Directors' compensation, each meeting attended in person 1,000      
Directors' compensation, each meeting attended by telephone 500      
Vice Chairman of the Board and Chairman of the Audit Committee | Subsequent Event        
Subsequent Event [Line Items]        
Annual directors' compensation $ 75,000