Fair Value Measurements - Assets at Fairvalue - (Details) - USD ($) | Jul. 31, 2021 | Jan. 30, 2021 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Total Financial Assets At Fair Value | $ 204,024,000 | $ 138,788,000 |
Deferred Compensation | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Other Liabilities, Fair Value Disclosure | 10,397,000 | 10,316,000 |
Total Financial Liabilities At Fair Value | 10,397,000 | 10,316,000 |
Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Total Financial Assets At Fair Value | 808,000 | 703,000 |
Level 1 | Deferred Compensation | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Other Liabilities, Fair Value Disclosure | 0 | 0 |
Total Financial Liabilities At Fair Value | 0 | 0 |
Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Total Financial Assets At Fair Value | 191,521,000 | 126,822,000 |
Level 2 | Deferred Compensation | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Other Liabilities, Fair Value Disclosure | 0 | 0 |
Total Financial Liabilities At Fair Value | 0 | 0 |
Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Total Financial Assets At Fair Value | 11,695,000 | 11,263,000 |
Level 3 | Deferred Compensation | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Other Liabilities, Fair Value Disclosure | 10,397,000 | 10,316,000 |
Total Financial Liabilities At Fair Value | 10,397,000 | 10,316,000 |
State/Municipal Bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | $ 29,333,000 | 23,254,000 |
State/Municipal Bonds | Maximum | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Term | 5 years | |
State/Municipal Bonds | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | $ 0 | 0 |
State/Municipal Bonds | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 29,333,000 | 23,254,000 |
State/Municipal Bonds | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Corporate Bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 108,199,000 | 67,566,000 |
Corporate Bonds | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Corporate Bonds | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 108,199,000 | 67,566,000 |
Corporate Bonds | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
US Treasury Notes | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | $ 32,379,000 | 17,869,000 |
US Treasury Notes | Maximum | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Term | 2 years | |
US Treasury Notes | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | $ 0 | 0 |
US Treasury Notes | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 32,379,000 | 17,869,000 |
US Treasury Notes | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Corporate Equities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 808,000 | 703,000 |
Corporate Equities | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 808,000 | 703,000 |
Corporate Equities | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Corporate Equities | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Certificates of Deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 1,393,000 | 2,069,000 |
Certificates of Deposit | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Certificates of Deposit | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 1,393,000 | 2,069,000 |
Certificates of Deposit | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Asset Backed Securities (ABS) | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 20,217,000 | 16,064,000 |
Asset Backed Securities (ABS) | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Asset Backed Securities (ABS) | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 20,217,000 | 16,064,000 |
Asset Backed Securities (ABS) | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Available for sale Securities | 0 | 0 |
Cash Surrender Value - Life Insurance | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash Surrender Value, Fair Value Disclosure | 11,695,000 | 11,263,000 |
Cash Surrender Value - Life Insurance | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash Surrender Value, Fair Value Disclosure | 0 | 0 |
Cash Surrender Value - Life Insurance | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash Surrender Value, Fair Value Disclosure | 0 | 0 |
Cash Surrender Value - Life Insurance | Level 3 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash Surrender Value, Fair Value Disclosure | $ 11,695,000 | $ 11,263,000 |