Annual report pursuant to Section 13 and 15(d)

Note D - Income Taxes (Details Textual)

v3.20.4
Note D - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Deferred Tax Assets, Valuation Allowance, Total $ 81,401 $ 64,285    
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 2,228      
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 105      
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 17,116      
Deferred Tax Liabilities, Withholding Tax on Unremitted Earnings 14,589 12,914    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 1,528 560    
Unrecognized Tax Benefits, Ending Balance 1,528 560 $ 282 $ 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total $ 491 330    
Open Tax Year 2016 2017 2018 2019 2020      
Other Current Liabilities [Member]        
Unrecognized Tax Benefits, Ending Balance $ 538      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total 243 $ 330    
Other Noncurrent Liabilities [Member]        
Unrecognized Tax Benefits, Ending Balance 990      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total 248      
Mirrored Deferred Tax Assets Recorded in the U.S. to Offset Deferred Tax Liabilities of Foreign Disregarded Entities [Member]        
Deferred Tax Assets, Valuation Allowance, Total 2,244      
Foreign Operating Loss Carryforwards [Member]        
Deferred Tax Assets, Valuation Allowance, Total 2,228      
Other Foreign Deferred Tax Assets [Member]        
Deferred Tax Assets, Valuation Allowance, Total 81,401      
Foreign Tax Authority [Member]        
Operating Loss Carryforwards, Total 7,015      
Operating Loss Carryforwards, Not Subject to Expiration 6,964      
Research Tax Credit Carryforward [Member] | Foreign Tax Authority [Member]        
Tax Credit Carryforward, Amount 75,347      
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member] | Utah State Tax Commission [Member]        
Tax Credit Carryforward, Amount 1,248      
Research Tax Credit Carryforward [Member] | Domestic Tax Authority [Member]        
Tax Credit Carryforward, Amount $ 333