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Prepaid Expenses and Other Current Assets and Other Current Liabilities - Other Liabilities (Details) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Balance Sheet Related Disclosures [Abstract]    
Accrued payroll and bonuses $ 7,512 $ 5,183
Current portion of deferred revenues 2,622 2,343
Short term lease liability 1,806 0
Gift card liability 1,758 2,782
Taxes payable 522 398
Other accrued liabilities 7,234 5,495
Total $ 21,454 $ 16,201