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Note 16 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions | Nov. 01, 2022 | Oct. 13, 2022 | Dec. 31, 2022 | Oct. 12, 2022 | Dec. 31, 2021
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Common Stock, Shares Authorized (in shares) |  | 160,000,000 | 160,000,000 | 100,000,000 | 100,000,000
Preferred Stock, Shares Authorized (in shares) |  |  | 500,000 |  | 500,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  | $ 25 |  | $ 25
Preferred Stock, Shares Issued (in shares) |  |  | 0 |  | 0
Preferred Stock, Shares Outstanding, Ending Balance (in shares) |  |  | 0 |  | 0
Stock Repurchase Program 2019 [Member] |  |  |  |  |
Stock Repurchase Program, Authorized Amount | $ 30 |  |  |  |
Stock Repurchase Program, Period in Force (Month) | 20 months |  |  |  |
TransGlobe [Member] |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  | 49,300,000 |  |  |

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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 + Details
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