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FINANCIAL INCOME, NET - Schedule of Financial Income (Expense) (Details) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
FINANCIAL INCOME, NET |  |  |
Interest income | € 10 | € 20 | € 19
Interest expense | (108) | (165) | (111)
Warrants exercised / forfeited |  |  | 889
Financial income (expense), net | € (98) | € (146) | € 797

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