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Note 5 - Performance-Based Restricted Units Oustanding (Details) - Performance Shares [Member] - shares
6 Months Ended 12 Months Ended
Jul. 03, 2016
Jan. 03, 2016
Outstanding at January 3, 2016 (in shares) 0  
Granted (in shares) 435,500 0
Vested (in shares) 0  
Forfeited or canceled (in shares) 0  
Outstanding at July 3, 2016 (in shares) 435,500 0