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Acquisition (Details 1) - USD ($)
$ in Thousands
Jul. 02, 2016
Jan. 02, 2016
Jul. 22, 2015
Business Acquisition [Line Items]      
Goodwill $ 0 $ 11,071  
Farncombe Entities [Member]      
Business Acquisition [Line Items]      
Cash     $ 1,378
Accounts receivable, net     4,627
Other current assets     191
Other non-current assets     137
Accounts payable     (1,874)
Accrued payroll and related expenses     (796)
Other current liabilities     (636)
Non-current deferred tax liability     (264)
Intangible assets     1,260
Goodwill     3,434
Net assets acquired     $ 7,457