Annual report pursuant to Section 13 and 15(d)

Note D - Income Taxes (Details Textual)

v3.22.0.1
Note D - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Deferred Tax Assets, Valuation Allowance, Total $ 99,958 $ 81,401    
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 1,327      
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 74      
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 18,557      
Undistributed Earnings, Basic, Total 4,000      
Incremental Taxes 400      
Unrecognized Tax Benefits, Ending Balance 1,008 1,528 $ 560 $ 282
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total $ 91 491    
Open Tax Year 2017 2018 2019 2020 2021      
Other Current Liabilities [Member]        
Unrecognized Tax Benefits, Ending Balance $ 199 538    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total 162 243    
Other Noncurrent Liabilities [Member]        
Unrecognized Tax Benefits, Ending Balance 809 990    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total 63 $ 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 1,964      
Foreign Operating Loss Carryforwards [Member]        
Deferred Tax Assets, Valuation Allowance, Total 1,327      
Other Foreign Deferred Tax Assets [Member]        
Deferred Tax Assets, Valuation Allowance, Total 99,958      
Foreign Tax Authority [Member]        
Operating Loss Carryforwards, Total 4,122      
Operating Loss Carryforwards, Not Subject to Expiration 3,926      
Research Tax Credit Carryforward [Member] | Foreign Tax Authority [Member]        
Tax Credit Carryforward, Amount 93,934      
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member] | Utah State Tax Commission [Member]        
Tax Credit Carryforward, Amount 1,362      
Research Tax Credit Carryforward [Member] | Domestic Tax Authority [Member]        
Tax Credit Carryforward, Amount $ 1,339