ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details Textual) - USD ($)	Jan. 31, 2018	Apr. 30, 2017
Fulfillment Services [Member]
Accounts Payable and Accrued Liabilities Disclosure [Line Items]
Accrued Liabilities	$ 496,000	$ 488,000
Customer Postage Deposits Current And Noncurrent	3,362,000	3,178,000
Accounts Payable, Trade	443,000	617,000
Other Accounts Payable and Accrued Liabilities	1,119,000	1,354,000
Real Estate Operations [Member]
Accounts Payable and Accrued Liabilities Disclosure [Line Items]
Accrued Liabilities	900,000	967,000
Accounts Payable, Trade	1,961,000	0
Other Accounts Payable and Accrued Liabilities	5,000	16,000
Customer Advances and Deposits	$ 490,000	$ 155,000