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Accrued Expenses - Components of Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Components of accrued expenses    
Customer deposits $ 775 $ 671
Earn-out – short term   334
Distributor commission   291
Sales and use tax payable 24 26
Royalties payable 89 84
Deferred rent   131
Other accrued expenses 656 1,226
Total accrued expenses $ 1,544 $ 2,763