CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - $ / shares	Apr. 30, 2015	Apr. 30, 2014
Stockholders' equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	6,000,000	6,000,000
Common stock, shares issued	5,615,750	5,615,750
Common stock, shares outstanding	5,615,750	5,615,750