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Note 17 - Shareholders' Equity - Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Details) € / shares in Units, € in Thousands | 12 Months Ended
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Dec. 31, 2019 EUR (€) € / shares shares
Outstanding options - Number (in shares) | shares | 7 |
Outstanding options - Weighted average remaining contractual life (Year) | 2 years 284 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 1,481,405 |
Outstanding options - Aggregate intrinsic value | € | € 818,900 | [1]
Exercisable options - Number (in shares) | shares | 2.6 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 1,098,728 | [2]
Exercise price, Lower range (in EUR per share) | 1.91 |
Exercise price, Upper range (in EUR per share) | € 1,273,900 |
Range 1 [Member] |  |
Outstanding options - Number (in shares) | shares | 9.3 |
Outstanding options - Weighted average remaining contractual life (Year) | 3 years 328 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 5,954 |
Outstanding options - Aggregate intrinsic value | € |  | [1]
Exercisable options - Number (in shares) | shares |  | [2]
Exercisable options - Weighted average exercise price (in EUR per share) |  | [2]
Range 2 [Member] |  |
Outstanding options - Number (in shares) | shares | 6.3 |
Outstanding options - Weighted average remaining contractual life (Year) | 3 years 80 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 352,013 |
Outstanding options - Aggregate intrinsic value | € | € 363,750 | [1]
Exercisable options - Number (in shares) | shares | 3.22 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 264,010 | [2]
Range 3 [Member] |  |
Outstanding options - Number (in shares) | shares | 8.7 |
Outstanding options - Weighted average remaining contractual life (Year) | 2 years 237 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 187,891 |
Outstanding options - Aggregate intrinsic value | € | € 36,250 | [1]
Exercisable options - Number (in shares) | shares | 2.65 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 46,973 | [2]
Range 4 [member] |  |
Outstanding options - Number (in shares) | shares | 7.3 |
Outstanding options - Weighted average remaining contractual life (Year) | 2 years 142 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 294,669 |
Outstanding options - Aggregate intrinsic value | € | € 94,400 | [1]
Exercisable options - Number (in shares) | shares | 2.39 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 146,868 | [2]
Range 5 [Member] |  |
Outstanding options - Number (in shares) | shares | 0.5 |
Outstanding options - Weighted average remaining contractual life (Year) | 2 years 138 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 65,764 |
Outstanding options - Aggregate intrinsic value | € | € 42,000 | [1]
Exercisable options - Number (in shares) | shares | 2.38 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 65,764 | [2]
Range 6 [Member] |  |
Outstanding options - Number (in shares) | shares | 3 |
Outstanding options - Weighted average remaining contractual life (Year) | 1 year 332 days |
Outstanding options - Weighted average exercise price (in EUR per share) | € 575,114 |
Outstanding options - Aggregate intrinsic value | € | € 282,500 | [1]
Exercisable options - Number (in shares) | shares | 1.91 | [2]
Exercisable options - Weighted average exercise price (in EUR per share) | € 575,114 | [2]
[1] | The aggregate intrinsic value represents the total pre-tax intrinsic value, based on the Company's closing stock price of $4.43 at December 31, 2019, which would have been received by the option holders had all in-the-money option holders exercised their options as of that date.
[2] | Fully vested options are all exercisable options

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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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding 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)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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