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Note 12 - Long-term Incentive Plan - Stock Option Activity (Details) - $ / shares | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020
Outstanding outstanding (in shares) |  | 688,000 | 688,000 |
Weighted average exercise price, options outstanding (in dollars per share) |  | $ 2.52 | $ 2.52 |
Weighted average fair value at grant date, options outstanding (in dollars per share) |  | $ 1 | $ 1 |
Options granted (in shares) |  |  |  |
Weighted average exercise price, options granted (in dollars per share) |  |  |  |
Options exercised (in shares) | (24,000) | (24,000) |  |
Weighted average exercise price, options exercised (in dollars per share) |  | $ 1.83 |  |
Weighted average fair value at grant date, options exercised (in dollars per share) |  | $ 0.43 |  |
Options expired (in shares) |  | (420,000) |  |
Weighted average exercise price, options expired (in dollars per share) |  | $ 2.48 |  |
Weighted average fair value at grant date, options expired (in dollars per share) |  | $ 1.02 |  |
Options cancelled or forfeited (in shares) |  |  |  |
Weighted average exercise price, options cancelled or forfeited (in dollars per share) |  |  |  |
Outstanding outstanding (in shares) | 244,000 | 244,000 | 688,000 |
Weighted average fair value at grant date, options outstanding (in dollars per share) | $ 1.03 | $ 1.03 | $ 1 |
Options cancelled or forfeited (in shares) |  |  |  |
Outstanding outstanding (in shares) | 244,000 | 244,000 | 688,000 | 244,000
Weighted average exercise price, options outstanding (in dollars per share) | $ 2.66 | $ 2.66 | $ 2.52 |
Weighted average fair value at grant date, options outstanding (in dollars per share) | $ 1.03 | $ 1.03 | $ 1 | $ 1.03
Options Vested (in shares) |  | 226,000 |  |
Weighted average exercise price, options vested (in dollars per share) |  |  |  | $ 2.72
Weighted average fair value at grant date, options vested (in dollars per share) |  | $ 1.08 |  |
Options exercisable (in shares) |  |  |  | 190,000
Weighted average exercise price, options exercisable (in dollars per share) |  |  |  | $ 2.89
Weighted average fair value at grant date, options exercisable (in dollars per share) |  |  |  | $ 1.20

X
- Definition The weighted-average fair value at grant date price at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of exercises in period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options expired during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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