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RECEIVABLES (Details) - USD ($)
$ in Thousands
Jan. 31, 2016
Apr. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Gross $ 8,475 $ 11,709
Less allowance for doubtful accounts (422) (444)
Accounts Receivable, Net 8,053 11,265
Fulfillment Services [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Gross 8,153 7,993
Buyer Promissory Note [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, Gross 0 1,600
Line of Credit receivable [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Gross 0 2,000
Real Estate Operations and Corporate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Gross $ 322 $ 116