Note 6 - Retirement and Other Benefit Plans - Expected Cash Flows (Details) $ in Thousands	Feb. 01, 2020 USD ($)
Pension Plan [Member]
2020 expected contributions to plan trusts	$ 2,444
2020 refund of assets (e.g. surplus) to employer	134
2020	17,328
2021	18,060
2022	16,676
2023	17,864
2024	16,480
2025-2029	92,214
Pension Plan [Member] \| Trust for Benefit of Employees [Member]
2020 expected contributions to plan trusts	92
Pension Plan [Member] \| Funded Plan [Member]
2020 expected contributions to plan trusts	0
2020 refund of assets (e.g. surplus) to employer	134
2020	14,885
2021	16,151
2022	15,100
2023	15,657
2024	16,219
2025-2029	90,117
Pension Plan [Member] \| Funded Plan [Member] \| Trust for Benefit of Employees [Member]
2020 expected contributions to plan trusts	92
Supplemental Employee Retirement Plan [Member]
2020 expected contributions to plan trusts	2,444
2020 refund of assets (e.g. surplus) to employer	0
2020	2,443
2021	1,909
2022	1,576
2023	2,207
2024	261
2025-2029	2,097
Supplemental Employee Retirement Plan [Member] \| Trust for Benefit of Employees [Member]
2020 expected contributions to plan trusts	0
Other Postretirement Benefits Plan [Member]
2020 expected contributions to plan trusts	203
2020 refund of assets (e.g. surplus) to employer	0
2020	203
2021	176
2022	151
2023	130
2024	110
2025-2029	333
Other Postretirement Benefits Plan [Member] \| Trust for Benefit of Employees [Member]
2020 expected contributions to plan trusts	$ 0

Amount of defined benefit plan asset expected to be returned to employer during 12-month period, or operating cycle, if longer, following latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (t)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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