Note 6 - Retirement and Other Benefit Plans - Amounts in Accumulated Other Comprehensive Loss and Expected Amortization (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Pension Plan [Member]
Net actuarial loss (gain)	$ 33,771	$ 34,879
Net prior service credit	(2,093)	(3,266)
Accumulated other comprehensive loss, net of tax	31,678	31,613
Amortization of net actuarial loss (gain)	4,198
Amortization of net prior service credit	(1,414)
Expected amortization, net of tax	2,784
Other Postretirement Benefits Plan [Member]
Net actuarial loss (gain)	(507)	(558)
Net prior service credit	0	0
Accumulated other comprehensive loss, net of tax	(507)	$ (558)
Amortization of net actuarial loss (gain)	(110)
Amortization of net prior service credit	0
Expected amortization, net of tax	$ (110)

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
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Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, after tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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