Note 9 - Senior Notes and Unsecured Revolving Credit Facility - Redemption Prices (Details) - 7.25% Senior Notes Due 2025 [Member] - Senior Notes [Member]		12 Months Ended
Oct. 28, 2020	Dec. 31, 2020
Redemption Price	101.813%
Year 2022 [Member]
Redemption Price		103.625%
Year 2023 [Member]
Redemption Price		101.813%
Year 2024 [Member]
Redemption Price		100.00%

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration