EMPLOYEE 401(k) PLANS (Details) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
EMPLOYEE 401(k) PLANS [Abstract]
Maximum voluntarily tax deferred contribution by employee (in hundredths)	15.00%
Maximum annual contribution by employer (in hundredths)	5.00%
Contributions by employer	$ 0	$ 0