XML 30 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value Measurements (Details) (USD $)
Mar. 30, 2013
Dec. 29, 2012
Marketable debt securities - current    
Marketable debt securities - current $ 57,856,000 $ 51,264,000
Marketable debt securities - non-current    
Marketable debt securities - non-current 38,700,000 38,642,000
Marketable debt securities 96,556,000 [1] 89,906,000 [1]
Deferred Compensation Liability, Classified, Noncurrent 800,000 1,600,000
Recurring [Member]
   
Marketable debt securities - current    
U.S. Treasury securities 17,524,000 17,538,000
Corporate bonds 27,745,000 21,549,000
U.S. Agency bonds 10,051,000 7,586,000
Municipal Bonds Current 2,536,000 4,591,000
Marketable debt securities - current 57,856,000 51,264,000
Marketable debt securities - non-current    
U.S. Treasury securities 15,008,000 15,004,000
Corporate bonds 10,466,000 10,359,000
U.S. Agency bonds 10,047,000 10,056,000
Municipal bonds 3,179,000 3,223,000
Marketable debt securities - non-current 38,700,000 38,642,000
Marketable debt securities 96,556,000 89,906,000
Recurring [Member] | Level 1 [Member]
   
Marketable debt securities - current    
U.S. Treasury securities 17,524,000 17,538,000
Corporate bonds 0 0
U.S. Agency bonds 0 0
Municipal Bonds Current 0 0
Marketable debt securities - current 17,524,000 17,538,000
Marketable debt securities - non-current    
U.S. Treasury securities 15,008,000 15,004,000
Corporate bonds 0 0
U.S. Agency bonds 0 0
Municipal bonds 0 0
Marketable debt securities - non-current 15,008,000 15,004,000
Marketable debt securities 32,532,000 32,542,000
Marketable securities assets funding the deferred compensation plan 800,000 1,600,000
Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
   
Marketable debt securities - current    
U.S. Treasury securities 0 0
Corporate bonds 27,745,000 21,549,000
U.S. Agency bonds 10,051,000 7,586,000
Municipal Bonds Current 2,536,000 4,591,000
Marketable debt securities - current 40,332,000 33,726,000
Marketable debt securities - non-current    
U.S. Treasury securities 0 0
Corporate bonds 10,466,000 10,359,000
U.S. Agency bonds 10,047,000 10,056,000
Municipal bonds 3,179,000 3,223,000
Marketable debt securities - non-current 23,692,000 23,638,000
Marketable debt securities 64,024,000 57,364,000
Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
   
Marketable debt securities - current    
U.S. Treasury securities 0 0
Corporate bonds 0 0
U.S. Agency bonds 0 0
Municipal Bonds Current 0 0
Marketable debt securities - current 0 0
Marketable debt securities - non-current    
U.S. Treasury securities 0 0
Corporate bonds 0 0
U.S. Agency bonds 0 0
Municipal bonds 0 0
Marketable debt securities - non-current 0 0
Marketable debt securities $ 0 $ 0
[1] See Note 2 for discussion of fair value measurements.