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Note 14 - Capital Stock - Dividends and Dividend Equivalents (Details) - $ / shares |  | 3 Months Ended
--- | --- | ---
May 04, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020
Equity [Abstract] |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.14 | $ 0.125 | $ 0.125 | $ 0.125 | $ 0.125 | $ 0.125
Capital Stock [Line Items] |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.14 | $ 0.125 | $ 0.125 | $ 0.125 | $ 0.125 | $ 0.125

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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- References No definition available. + Details
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