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Note 2 - Intangible Assets - Future Intangible Asset Amortization Expense (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 30, 2016
Remainder of 2017 $ 142  
2018 298  
2019 293  
2020 209  
2021 194  
Thereafter 434  
Total estimated amortization expense $ 1,570 $ 1,714