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Note 12 - Share-based Compensation - Stock Options Outstanding (Details) | 6 Months Ended
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Jun. 30, 2026 $ / shares shares
Outstanding, shares (in shares) | shares | 8,180,495
Outstanding, weighted average remaining contractual life (Year) | 7 years 3 months 18 days
Outstanding, weighted average exercise price (in dollars per share) | $ 4.61
xercisable, shares (in shares) | shares | 3,436,681
Exercisable, weighted average remaining contractual life (Year) | 5 years 7 months 6 days
Exercise Price Range 1 [Member] |
Lower range limit (in dollars per share) | $ 1
Upper range limit (in dollars per share) | $ 1.99
Outstanding, shares (in shares) | shares | 51,443
Outstanding, weighted average remaining contractual life (Year) | 6 years 7 months 6 days
Outstanding, weighted average exercise price (in dollars per share) | $ 1.64
xercisable, shares (in shares) | shares | 48,318
Exercisable, weighted average remaining contractual life (Year) | 6 years 7 months 6 days
Exercise Price Range 2 [Member] |
Lower range limit (in dollars per share) | $ 2
Upper range limit (in dollars per share) | $ 2.99
Outstanding, shares (in shares) | shares | 2,016,923
Outstanding, weighted average remaining contractual life (Year) | 6 years 4 months 24 days
Outstanding, weighted average exercise price (in dollars per share) | $ 2.75
xercisable, shares (in shares) | shares | 1,537,218
Exercisable, weighted average remaining contractual life (Year) | 6 years 4 months 24 days
Exercise Price Range 3 [Member] |
Lower range limit (in dollars per share) | $ 3
Upper range limit (in dollars per share) | $ 3.99
Outstanding, shares (in shares) | shares | 223,107
Outstanding, weighted average remaining contractual life (Year) | 3 years 6 months
Outstanding, weighted average exercise price (in dollars per share) | $ 3.67
xercisable, shares (in shares) | shares | 206,233
Exercisable, weighted average remaining contractual life (Year) | 3 years 1 month 6 days
Exercise Price Range 4 [Member] |
Lower range limit (in dollars per share) | $ 4
Upper range limit (in dollars per share) | $ 4.99
Outstanding, shares (in shares) | shares | 2,764,219
Outstanding, weighted average remaining contractual life (Year) | 7 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) | $ 4.33
xercisable, shares (in shares) | shares | 1,229,019
Exercisable, weighted average remaining contractual life (Year) | 5 years 4 months 24 days
Exercise Price Range 5 [Member] |
Lower range limit (in dollars per share) | $ 5
Upper range limit (in dollars per share) | $ 5.99
Outstanding, shares (in shares) | shares | 2,168,536
Outstanding, weighted average remaining contractual life (Year) | 8 years 3 months 18 days
Outstanding, weighted average exercise price (in dollars per share) | $ 5.72
xercisable, shares (in shares) | shares | 272,101
Exercisable, weighted average remaining contractual life (Year) | 5 years 6 months
Exercise Price Range 6 [Member] |
Lower range limit (in dollars per share) | $ 6
Upper range limit (in dollars per share) | $ 10
Outstanding, shares (in shares) | shares | 956,267
Outstanding, weighted average remaining contractual life (Year) | 8 years 4 months 24 days
Outstanding, weighted average exercise price (in dollars per share) | $ 7.24
xercisable, shares (in shares) | shares | 143,792
Exercisable, weighted average remaining contractual life (Year) | 3 years 1 month 6 days

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted-average contractual term remaining for exercisable stock option, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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