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Accrued Expenses - Components of Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 29, 2018
Dec. 30, 2017
Components of accrued expenses    
Customer deposits $ 671 $ 509
Earn-out – short term 334 337
Distributor commission 291 293
Sales and use tax payable 26 57
Royalties payable 84 82
Deferred rent 131  
Other accrued expenses 1,226 875
Total accrued expenses $ 2,763 $ 2,153