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ACCOUNTS PAYABLE AND ACCRUED EXPENSES: (Details) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Apr. 30, 2012
Publisher payables, net	$ 75,257	$ 75,982
Accrued expenses	1,897	3,527
Trade payables	3,275	2,042
Other	4,911	4,169
Accounts Payable and Accrued Liabilities, Total	$ 85,340	$ 85,720

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

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