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Note 15 - Stock Option Plans - Summary of Exercise Prices, Weighted Average Remaining Contractual Life and Intrinsic Values of Outstanding Options (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) $ / shares shares
Number outstanding (in shares) | shares | 1,036,748
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 59.97
Weighted average remaining contractual life, options outstanding (Year) | 4 years 3 months 18 days
Aggregate intrinsic value, options outstanding | $ | $ 64
Number exercisable (in shares) | shares | 520,679
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 62.74
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 3 years
The 2022 Wavelo Equity Compensation Plan [Member] |
Exercise price - lower (in dollars per share) | $ 0
Exercise price - higher (in dollars per share) | $ 1.27
Number outstanding (in shares) | shares | 15,975,528
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 1.27
Weighted average remaining contractual life, options outstanding (Year) | 6 years 10 months 24 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 0
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 0
Aggregate intrinsic value, options exercisable | $ | $ 0
Exercise Price Range 01 [Member] |
Exercise price - lower (in dollars per share) | $ 30.70
Exercise price - higher (in dollars per share) | $ 30.74
Number outstanding (in shares) | shares | 20,000
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 30.71
Weighted average remaining contractual life, options outstanding (Year) | 6 years 10 months 24 days
Aggregate intrinsic value, options outstanding | $ | $ 64
Number exercisable (in shares) | shares | 0
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 0
Aggregate intrinsic value, options exercisable | $ | $ 0
Exercise Price Range 01 [Member] | The 2022 Wavelo Equity Compensation Plan [Member] |
Weighted average remaining contractual life, options outstanding (Year) | 6 years 10 months 24 days
Number exercisable (in shares) | shares | 0
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 0
Aggregate intrinsic value, options exercisable | $ | $ 0
Exercise Price Range 02 [Member] |
Exercise price - lower (in dollars per share) | $ 40.04
Exercise price - higher (in dollars per share) | $ 48.00
Number outstanding (in shares) | shares | 236,830
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 42.37
Weighted average remaining contractual life, options outstanding (Year) | 6 years 1 month 6 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 7,000
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 47.29
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 2 years 1 month 6 days
Exercise Price Range 03 [Member] |
Exercise price - lower (in dollars per share) | $ 51.82
Exercise price - higher (in dollars per share) | $ 59.98
Number outstanding (in shares) | shares | 198,508
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 55.72
Weighted average remaining contractual life, options outstanding (Year) | 1 year 8 months 12 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 192,958
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 55.72
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 1 year 7 months 6 days
Exercise Price Range 04 [Member] |
Exercise price - lower (in dollars per share) | $ 60.01
Exercise price - higher (in dollars per share) | $ 68.41
Number outstanding (in shares) | shares | 316,485
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 62.08
Weighted average remaining contractual life, options outstanding (Year) | 3 years 7 months 6 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 222,878
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 62.67
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 3 years 3 months 18 days
Exercise Price Range 05 [Member] |
Exercise price - lower (in dollars per share) | $ 70.13
Exercise price - higher (in dollars per share) | $ 79.51
Number outstanding (in shares) | shares | 248,425
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 78.41
Weighted average remaining contractual life, options outstanding (Year) | 5 years 2 months 12 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 90,906
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 77.59
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 4 years 10 months 24 days
Exercise Price Range 06 [Member] |
Exercise price - lower (in dollars per share) | $ 80.61
Exercise price - higher (in dollars per share) | $ 82.07
Number outstanding (in shares) | shares | 16,500
Weighted average exercise price per share, options outstanding (in dollars per share) | $ 81.27
Weighted average remaining contractual life, options outstanding (Year) | 5 years 9 months 18 days
Aggregate intrinsic value, options outstanding | $ | $ 0
Number exercisable (in shares) | shares | 6,937
Weighted average exercise price per share, options exercisable (in dollars per share) | $ 81.60
Aggregate intrinsic value, options exercisable | $ | $ 0
Weighted average remaining contractual life, options exercisable (Year) | 5 years 9 months 18 days

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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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