EMPLOYEE INCENTIVE PLANS (Details) - USD ($)	12 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Performance Bonus
Employee incentive plans
Discretionary bonus expense	$ 0	$ 107,000
Short Term Cash Incentive Plan
Employee incentive plans
Incentive plan expense	0	66,000
Long Term Cash Incentive Plan
Employee incentive plans
Incentive plan expense	0
401(k) Retirement Plan
Employee incentive plans
Employer contributions	$ 11,000	$ 6,000