ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details Textual) - USD ($)	Oct. 31, 2015	Apr. 30, 2015
Accounts Payable and Accrued Liabilities Disclosure [Line Items]
Accrued Liabilities	$ 2,378,000	$ 1,142,000
Customer Postage Deposits Current And Noncurrent	4,202,000	4,832,000
Accounts Payable, Trade	1,611,000	1,641,000
Other Accounts Payable and Accrued Liabilities	$ 1,854,000	$ 2,669,000