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Note 11 - Stock-based Compensation - Stock Option Activity (Details) | 3 Months Ended
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Mar. 31, 2024 $ / shares shares
Market Vesting Options [Member] |
Balance, Number (in shares) | shares | 733,334
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 3
Granted, Number (in shares) | shares | 0
Granted, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 0
Forfeited or expired, Number (in shares) | shares | 0
Forfeited or expired, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 0
Balance, Number (in shares) | shares | 733,334
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 3
Time Vesting Options [Member] |
Balance, Number (in shares) | shares | 662,798
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 10
Granted, Number (in shares) | shares | 0
Granted, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 0
Forfeited or expired, Number (in shares) | shares | (334)
Forfeited or expired, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 71.1
Balance, Number (in shares) | shares | 662,464
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 9.97
Performance Vesting Options [Member] |
Balance, Number (in shares) | shares | 240,000
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 7.59
Granted, Number (in shares) | shares | 0
Granted, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 0
Forfeited or expired, Number (in shares) | shares | 0
Forfeited or expired, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 0
Balance, Number (in shares) | shares | 240,000
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 7.59

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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