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Note 15 - Discontinued Operations (Details Textual)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 30, 2012
USD ($)
Jul. 30, 2016
USD ($)
Oct. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Discontinued Operation Disposal Price $ 16,100              
Proceeds from Sales of Business, Affiliate and Productive Assets 13,100              
Notes Receivable, Related Parties, Current $ 3,000              
Number of Facilities Used as Collateral Sold in Period       1        
Proceeds from Advance Payment on Notes Receivable     $ 2,800          
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax       $ (200)        
Payments to Final Multi-employer Plan   $ 500            
Operating Income (Loss)         $ 65,026 $ 70,344 $ 78,644  
American Food Service Corporation [Member]                
Operating Income (Loss)               $ (3,500)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax               $ (4,800)