RECEIVABLES (Details) - USD ($)	Jan. 31, 2017	Apr. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 7,576,000	$ 7,705,000
Less allowance for doubtful accounts	(386,000)	(434,000)
Accounts Receivable, Net	7,190,000	7,271,000
Fulfillment services [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	7,558,000	7,357,000
Accounts Receivable, Net	745,000
Real Estate Operations [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	0	300,000
Corporate Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 18,000	$ 48,000