CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jul. 31, 2014	Apr. 30, 2014
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized, including redeemable common stock	125,000,000	125,000,000
Common stock, shares issued	70,121,741	70,121,741
Common stock, shares outstanding	66,885,741	66,885,741
Treasury stock, common shares	3,236,000	3,236,000