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Debt and Credit Agreement (Narrative) (Details) - USD ($) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
May 14, 2021 | Apr. 30, 2020 | Jan. 30, 2022 | May 17, 2018
TRI Senior Secured Note [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, original balance |  |  | $ 26,700,000 |
Debt instrument, maturity date |  |  | Oct. 15, 2038 |
Debt instrument stated percentage interest rate |  |  | 4.95% |
TRI Note [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, original balance |  |  | $ 3,500,000 |
TRI note maturity date |  |  | 2038-11 |
Debt instrument stated percentage interest rate |  |  | 3.05% |
Amended Credit Agreement [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity |  | $ 150,500,000 |  |
Amended Credit Agreement [Member] | Duluth Delayed Draw Term Loan ("DDTL") [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit maturity date |  | Apr. 29, 2021 |  |
Amended Credit Agreement [Member] | Incremental Delayed Draw Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity |  | $ 20,500,000 |  |
Amended Credit Agreement [Member] | Floor Rate [Member] | Duluth Delayed Draw Term Loan ("DDTL") [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 1.00% |
Amended Credit Agreement [Member] | Floor Rate [Member] | Incremental Delayed Draw Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 1.00% |
Credit Agreement [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity |  |  |  | $ 130,000,000.0
Credit Agreement [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity |  |  |  | 80,000,000.0
Credit Agreement [Member] | Duluth Delayed Draw Term Loan ("DDTL") [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity |  |  |  | $ 50,000,000.0
New Credit Agreement [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity | $ 150,000,000.0 |  |  |
New Credit Agreement [Member] | Standby Letter of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity | 5,000,000.0 |  |  |
New Credit Agreement [Member] | Swing Line Loans [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity | $ 10,000,000.0 |  |  |
Minimum [Member] | Amended Credit Agreement [Member] | LIBOR [Member] | Duluth Delayed Draw Term Loan ("DDTL") [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 2.25% |
Minimum [Member] | Amended Credit Agreement [Member] | LIBOR [Member] | Incremental Delayed Draw Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 2.75% |
Minimum [Member] | New Credit Agreement [Member] | Bloomberg Short-Term Bank Yield Index Rate [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate | 1.25% |  |  |
Minimum [Member] | New Credit Agreement [Member] | Base Rate [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate | 0.25% |  |  |
Maximum [Member] | Amended Credit Agreement [Member] | LIBOR [Member] | Duluth Delayed Draw Term Loan ("DDTL") [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 3.00% |
Maximum [Member] | Amended Credit Agreement [Member] | LIBOR [Member] | Incremental Delayed Draw Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate |  |  | 3.50% |
Maximum [Member] | New Credit Agreement [Member] | Bloomberg Short-Term Bank Yield Index Rate [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate | 2.00% |  |  |
Maximum [Member] | New Credit Agreement [Member] | Base Rate [Member] | Revolving Senior Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument variable interest rate | 1.00% |  |  |

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