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Note 8 - Redeemable Non-controlling Interest - Redeemable Non-controlling Interests (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 02, 2017
Dec. 03, 2016
Nov. 28, 2015
Balance at beginning of year $ 4,277 $ 4,199  
Net income attributed to redeemable non-controlling interest 39 239 $ 321
Purchase of redeemable non-controlling interest (4,468)  
Foreign currency translation adjustment 152 (161)  
Balance at end of year $ 4,277 $ 4,199