Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 28, 2018	Dec. 29, 2017
Accrued Liabilities And Other Liabilities Current [Abstract]
Accrued compensation and benefits	$ 5,012	$ 5,217
Accrued bonuses	5,064	3,862
Accrued dividend payable	5,407	4,656
Acquisition earnout accruals	2,559	6,207
Deferred revenue	8,259	9,271
Accrued sales, use, franchise and VAT tax	3,077	3,670
Non-cash stock compensation accrual	872	1,890
Income tax payable	1,769	5,649
Other accrued expenses	2,479	2,263
Total accrued expenses and other liabilities	$ 34,498	$ 42,685