v3.8.0.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2017
Oct. 02, 2016
Oct. 01, 2017
Oct. 02, 2016
Jan. 01, 2017
Immediate Family Member of Management or Principal Owner [Member]          
Related Party Transaction [Line Items]          
Software purchases from related party     $ 49    
Director [Member]          
Related Party Transaction [Line Items]          
Revenues and NAF contributions $ 399 $ 447 1,309 $ 1,449  
Accounts receivable from related parties 316   316   $ 370
Chief Executive Officer [Member]          
Related Party Transaction [Line Items]          
Revenues and NAF contributions 121 $ 118 367 $ 377  
Accounts receivable from related parties $ 46   $ 46   $ 50