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Note 15 - Preferred Shares - Dividends Series B Preferred Shares (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Balance (in shares) | 19,605 | 37,314 | 35,505
Balance | $ 18,757,361 | $ 35,613,759 | $ 33,804,948
Dividends declared (in shares) | 81 | 1,333 | 1,809
Dividends declared | $ 78,639 | $ 1,335,733 | $ 1,808,811
Shares distributed to EuroDry (in shares) |  | (19,042) |
Shares distributed to EuroDry |  | $ (18,192,131) |
Redemption of shares (in shares) | (11,686) |  |
Redemption of shares | $ (11,686,000) |  |
Preferred deemed dividend | $ 504,577 |  |
Balance (in shares) | 8,000 | 19,605 | 37,314
Balance | $ 7,654,577 | $ 18,757,361 | $ 35,613,759
Ordinary Preferred Stock [Member] |  |  |
Balance | 14,500,000 | 29,000,000 | 29,000,000
Dividends declared |  |  |
Shares distributed to EuroDry |  | (14,500,000) |
Redemption of shares | (8,155,055) |  |
Preferred deemed dividend | 504,577 |  |
Balance | 6,849,522 | 14,500,000 | 29,000,000
Preferred Stock Issued as Dividends [Member] |  |  |
Balance | 4,257,361 | 6,613,759 | 4,804,948
Dividends declared | 78,639 | 1,335,733 | 1,808,811
Shares distributed to EuroDry |  | (3,692,131) |
Redemption of shares | (3,530,945) |  |
Preferred deemed dividend |  |  |
Balance | $ 805,055 | $ 4,257,361 | $ 6,613,759

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- Definition Represents number of preferred stock distributed. + References No definition available. + Details
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- Definition Number of preferred stock redeemed during the period. + References No definition available. + Details
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- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in payment-in-kind (PIK). + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
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- Definition Number of shares of preferred stock issued as dividends during the period. Excludes stock splits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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