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Note 14 - Capital Stock Dividends Paid (Details) - $ / shares |  | 3 Months Ended
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Feb. 13, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017
Common Stock, Dividends, Per Share, Declared |  | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025 | $ 0.0025
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.125 |  |  |  |  |  |  |  |  |  |  |  |

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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=27012166&loc=d3e187085-122770 + Details
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