XML 52 R40.htm IDEA: XBRL DOCUMENT v3.5.0.1
EMPLOYEE INCENTIVE PLANS (Details) - USD ($)
12 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Performance Bonus    
Employee incentive plans    
Discretionary bonus expense $ 176,000 $ 0
Short Term Cash Incentive Plan    
Employee incentive plans    
Incentive plan expense $ 0 0
Stock Award Plan | Restricted Stock    
Employee incentive plans    
Restriction period of awards 5 years  
Long Term Cash Incentive Plan    
Employee incentive plans    
Incentive plan expense $ 0 0
401(k) Retirement Plan    
Employee incentive plans    
Employer contributions $ 35,000 $ 11,000