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Marketable Securities - Available-for-sale by Maturity Date (Details) (USD $)
In Thousands, unless otherwise specified
Nov. 01, 2014
Schedule of Available-for-sale Securities  
Less than 12 months $ 8,967
Greater than 12 months 16,474
Total 25,441
Certificates of deposit
  
Schedule of Available-for-sale Securities  
Less than 12 months 3,463
Greater than 12 months 6,954
Total 10,417
U.S. Government securities
  
Schedule of Available-for-sale Securities  
Less than 12 months 1,001
Greater than 12 months 501
Total 1,502
U.S. Government sponsored entities
  
Schedule of Available-for-sale Securities  
Less than 12 months 0
Greater than 12 months 7,140
Total 7,140
Municipal obligations
  
Schedule of Available-for-sale Securities  
Less than 12 months 4,503
Greater than 12 months 1,879
Total $ 6,382