XML 57 R39.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 16 - Financial Instruments and Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
 
 
December 31,
 
 
December 28,
 
 
 
2015
 
 
2014
 
 
(In thousands)
Short-Term Investments
               
Commercial paper
  $     $ 23,984  
Corporate bonds
          21,693  
Certificates of deposit
          961