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Investments (Tables)
 9 Months Ended
Oct. 28, 2023
Schedule of Investments [Abstract]  
Schedule of investments, cost and fair value
The following is a summary of investments as of October 28, 2023:
 
Amortized
Cost or
Par Value		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Other-than-
Temporary
Impairment		Estimated
Fair
Value
Held-to-Maturity Securities:     
State and municipal bonds$23,446 $1 $(43)$— $23,404 
Trading Securities:     
Mutual funds$23,231 $— $(723)$— $22,508 
 
The following is a summary of investments as of January 28, 2023:
 
Amortized
Cost or
Par Value		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Other-than-
Temporary
Impairment		Estimated
Fair
Value
Held-to-Maturity Securities:     
State and municipal bonds$20,997 $10 $(15)$— $20,992 
Trading Securities:     
Mutual funds$20,871 $— $(247)$— $20,624 
Schedule of amortized cost and fair value of debt securities by contractual maturity
The amortized cost and fair value of debt securities by contractual maturity as of October 28, 2023 is as follows:
 
Amortized
Cost		Fair
Value
Held-to-Maturity Securities  
Less than 1 year$23,446 $23,404 
1 - 5 years— — 
 Total$23,446 $23,404