RECEIVABLES (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Apr. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 5,893	$ 6,215
Less allowance for doubtful accounts	(351)	(314)
Accounts Receivable, Net	5,542	5,901
Fulfillment service [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	5,805	6,189
Real estate operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	68	10
Corporate operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 20	$ 16

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business.

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For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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