Note 2. Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 28, 2014
Aug. 26, 2013
Dec. 29, 2013
Note 2. Significant Accounting Policies (Details) [Line Items]      
Convertible Debt (in Dollars)   $ 150.0  
Income Tax Examination Likelihood of Being Sustained Upon Examination 50.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%    
2.00% Senior Exchange Notes [Member]      
Note 2. Significant Accounting Policies (Details) [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.00% 2.00% 2.00%