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Marketable Securities - Available-for-sale by Maturity Date (Details)
$ in Thousands
May. 02, 2015
USD ($)
Schedule of Available-for-sale Securities  
Less than 12 months $ 8,899
Greater than 12 months 16,447
Total 25,346
Certificates of deposit  
Schedule of Available-for-sale Securities  
Less than 12 months 3,211
Greater than 12 months 8,198
Total 11,409
U.S. Government securities  
Schedule of Available-for-sale Securities  
Less than 12 months 1,001
Greater than 12 months 0
Total 1,001
U.S. Government sponsored entities  
Schedule of Available-for-sale Securities  
Less than 12 months 0
Greater than 12 months 7,942
Total 7,942
Municipal obligations  
Schedule of Available-for-sale Securities  
Less than 12 months 4,687
Greater than 12 months 307
Total $ 4,994