BENEFIT PLANS: (Details 8) - $ / shares	12 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Number Of Shares - Non-vested	24,000	0
Number Of Shares - Granted	12,000	24,000
Number Of Shares - Vested	(8,000)	0
Number Of Shares - Forfeited	0	0
Number Of Shares - Non-vested	28,000	24,000
Weighted Average Grant Date Fair Value Non-vested	$ 6.96	$ 0
Weighted Average Grant Date Fair Value Granted	6.90	6.96
Weighted Average Grant Date Fair Value Vested	6.80	0
Weighted Average Grant Date Fair Value Forfeited	0	0
Weighted Average Grant Date Fair Value Non-vested	$ 6.98	$ 6.96