Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 29, 2019
Dec. 30, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Operating loss carryforwards $ 4,700    
Deferred tax assets, tax credit carryforwards 39,000    
Valuation allowance (7,293) $ (5,177)  
Unrecognized tax benefits $ 104 $ 304 $ 287