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Note 24 - Subsequent Events (Details Textual) - USD ($)
12 Months Ended
Jun. 01, 2016
Apr. 04, 2016
Mar. 31, 2016
Jun. 30, 2016
Corporate Headquarters, Annual Rental Payment     $ 178,000  
Subsequent Event [Member]        
Agreements to Acquire Land and Construct New Headquarters Facility, Aggregate Amount       $ 1,900,000
Subsequent Event [Member] | ATGL [Member] | Delphax [Member]        
Payments to Acquire Machinery and Equipment   $ 650,000    
Subsequent Event [Member] | MAC and CSA [Member] | FedEx Corporation [Member]        
Administrative Fee Increase (Decrease), Percentage (2.00%)