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11. LINE OF CREDIT (Details Narrative) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Nov. 30, 2014
Nov. 30, 2014
May 31, 2014
Line of Credit Facility [Abstract]      
Line of credit, maximum borrowing capacity $ 2,500us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity $ 2,500us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity  
Line of credit facility, amount borrowed 642us-gaap_LineOfCredit 642us-gaap_LineOfCredit 777us-gaap_LineOfCredit [1]
Balance available to borrow under the line of credit 218us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity 218us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity  
Weighted average interest rate 3.889%us-gaap_DebtWeightedAverageInterestRate 3.889%us-gaap_DebtWeightedAverageInterestRate  
Average loan balance $ 713us-gaap_LineOfCreditFacilityAverageOutstandingAmount $ 775us-gaap_LineOfCreditFacilityAverageOutstandingAmount  
Compliance with covenants   The Company was in compliance with all covenants at November 30, 2014  
[1] The condensed consolidated balance sheet at May 31, 2014 has been derived from the audited consolidated financial statements at that date.