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Note 14 - Income (Loss) Per Common Share (Details Textual) - $ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017
Common Stock, Shares Authorized |  | 750,000,000 | 750,000,000
Common Stock, Par or Stated Value Per Share |  | $ 0.25 | $ 0.25
Common Stock, Shares, Issued, Total |  | 482,603,937 | 399,176,425
Treasury Stock, Shares, Ending Balance |  | 5,226,791 | 4,529,450
Common Stock, Shares, Outstanding, Ending Balance |  | 482,603,937 | 399,176,425
Preferred Stock, Shares Outstanding, Ending Balance | 157,816 | 157,816 | 157,816
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance | 0 | 0 | 0
Class of Warrant or Right, Outstanding | 0 | 0 | 0
Restricted Stock Units (RSUs) [Member] |  |  |
Incremental Common Shares Attributable to Share-based Payment Arrangements, Total | 4,309,440 |  |
Deferred Shares [Member] |  |  |
Incremental Common Shares Attributable to Share-based Payment Arrangements, Total | 635,602 |  |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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