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Note 12 - Regulatory Capital (Details Textual) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2020 $ / shares | Dec. 31, 2020 USD ($) $ / shares | Dec. 31, 2019 $ / shares
Tier One Leverage Capital Required to be Well Capitalized to Average Assets |  | 0.075 |
Dividends To Be Declared, Restrictions Amount Added To Net Profit | $ |  | $ 4.7 |
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares | $ 0.31 | $ 1.24 | $ 1.23

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- Definition Represents dividends to be declared for restrictions amount added to net profit. + 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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- Definition Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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