Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Details 1)

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Accumulated Other Comprehensive Income (Details 1) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Unrealized gains and losses on available-for-sale securities    
Miscellaneous (income) expense, net $ (94) $ 125
Unrealized gains and losses on available-for-sale securities before tax 14,154 15,741
Income Tax Expense (Benefit) 4,579 5,118
Unrealized gains and losses on available-for-sale securities Net of Tax 9,575 10,623
Reclassification out of Accumulated Other Comprehensive Income [Member]
   
Unrealized gains and losses on available-for-sale securities    
Unrealized gains and losses on available-for-sale securities Net of Tax (35)  
Unrealized gains and losses on available-for-sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
   
Unrealized gains and losses on available-for-sale securities    
Unrealized gains and losses on available-for-sale securities before tax (52)  
Income Tax Expense (Benefit) 17  
Unrealized gains and losses on available-for-sale securities Net of Tax (35)  
Unrealized gains and losses on available-for-sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Realized gain/(loss) on sale of securities [Member]
   
Unrealized gains and losses on available-for-sale securities    
Miscellaneous (income) expense, net 9  
Unrealized gains and losses on available-for-sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Other than temporary impairment [Member]
   
Unrealized gains and losses on available-for-sale securities    
Miscellaneous (income) expense, net $ (61)