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Note 15 - Equity-based Compensation - Stock Options Outstanding (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Outstanding awards (in shares) | 3,165,000 |
Outstanding, weighted-average exercise price (in dollars per share) | $ 2.05 |
Outstanding, weighted-average remaining contractual life (Year) | 7 years 7 months 6 days | 7 years 7 months 6 days
Outstanding, aggregate intrinsic value | $ 460 | $ 189
Options granted (in shares) | 516,000 |
Options granted, weighted-average exercise price (in dollars per share) | $ 0.66 |
Restricted stock units granted (in shares) | 1,528,000 |
Options forfeited/cancelled (in shares) | (272,000) |
Options forfeited/cancelled, weighted-average exercise price (in dollars per share) | $ 2.35 |
Outstanding awards (in shares) | 4,449,000 | 3,165,000
Outstanding, weighted-average exercise price (in dollars per share) | $ 1.39 | $ 2.05
Vested and expected to vest (in shares) | 4,125,000 |
Vested and expected to vest, weighted-average exercise price (in dollars per share) | $ 1.46 |
Vested and expected to vest, weighted-average remaining contractual life (Year) | 7 years 6 months |
Vested and expected to vest, aggregate intrinsic value | $ 406 |
Vested (in shares) | 2,150,000 |
Vested, weighted-average exercise price (in dollars per share) | $ 2.42 |
Vested, weighted-average remaining contractual life (Year) | 5 years 4 months 24 days |
Vested, aggregate intrinsic value | $ 8 |
Exercisable (in shares) | 2,150,000 |
Exercisable, weighted-average exercise price (in dollars per share) | $ 2.42 |
Exercisable, weighted-average remaining contractual life (Year) | 5 years 10 months 24 days |
Exercisable, aggregate intrinsic value | $ 8 |
Restricted Stock Units (RSUs) [Member] |  |
Restricted stock units granted (in shares) | 1,200,000 |
Restricted stock units vested (in shares) | (488,000) |

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- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options and equity instruments other than options that are fully vested or expected to vest. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for fully vested and expected to vest equity instruments other than options and options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, including stock (or unit) options, that vested during the reporting period. + References No definition available. + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option or for Options, plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for equity instruments other than options and option awards Vested, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of shares into which fully or partially vested stock equity instruments other than options and options outstanding as of the balance sheet date can be currently converted under the option plan. + References No definition available. + Details
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- Definition Weighted average price at which option or equity instruments other than options, holders acquired shares when converting their stock options or equity instruments other than options, into shares. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for equity instruments other than options and options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, including stock (or unit) options, outstanding during the reporting period. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest equity instruments other than options and options outstanding. + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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://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)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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