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Marketable Securities - Available-for-sale by Maturity Date (Details)
$ in Thousands
Jan. 30, 2016
USD ($)
Schedule of Available-for-sale Securities  
Less than 12 months $ 7,815
Greater than 12 months 16,656
Total 24,471
Certificates of deposit  
Schedule of Available-for-sale Securities  
Less than 12 months 6,564
Greater than 12 months 8,856
Total 15,420
U.S. Government sponsored entities  
Schedule of Available-for-sale Securities  
Less than 12 months 0
Greater than 12 months 6,569
Total 6,569
Municipal obligations  
Schedule of Available-for-sale Securities  
Less than 12 months 1,251
Greater than 12 months 1,231
Total $ 2,482