ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details Textual) - USD ($)	Oct. 31, 2018	Apr. 30, 2018
Real Estate Operation [Member]
Accounts Payable and Accrued Liabilities Disclosure [Line Items]
Accrued Liabilities	$ 653,000	$ 746,000
Accounts Payable, Trade	899,000	773,000
Other Accounts Payable and Accrued Liabilities		9,000
Customer Advances and Deposits, Current	1,094,000	897,000
Fulfillment Services [Member]
Accounts Payable and Accrued Liabilities Disclosure [Line Items]
Accrued Liabilities	368,000	515,000
Customer Postage Deposits Current And Noncurrent	2,327,000	2,505,000
Accounts Payable, Trade	635,000	388,000
Other Accounts Payable and Accrued Liabilities	$ 1,533,000	$ 1,322,000