Self-Insurance Captive (Details) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Captive Investment Percentage [Member]
Schedule of Self-Insurance [Line Items]
Captive investment Percentage	3.00%
Captive Insurance Investment [Member]
Schedule of Self-Insurance [Line Items]
Captive Insurance Investment	$ 52,000
Self-Insurance Accrual [Member]
Schedule of Self-Insurance [Line Items]
Self-Insurance Accrual	$ 56,000	$ 15,000