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Employee Savings Plan
12 Months Ended
Apr. 30, 2013
Employee Savings Plan  
Employee Savings Plan

7.     Employee Savings Plan

        The Company has an employee 401(k) savings plan covering all eligible employees. The Company expensed approximately $3,137,000, $2,629,000 and $2,401,000 in contributions to the plan for the years ended April 30, 2013, 2012 and 2011, respectively.