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Note 4 - Accounts and Other Receivables (Tables)
 12 Months Ended
May 31, 2016
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
   
201
6
    
201
5
  
                 
Rebates receivable
  
$
1,001
     $ 943  
Amounts due from franchisees
  
 
3,013
       1,995  
Third-party gift card sales
  
 
1,272
       1,330  
Receivables from sales
of Lime Fresh Mexican Grill assets
  
 
5,289
       –  
Other receivables
  
 
2,252
       1,019  
   
$
12,827
     $ 5,287