The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

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The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The exercise price of share options granted.

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The percentage of an expected dividend used to calculate the fair value of share options granted.

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The amount of expense from share-based payment transactions with employees.

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The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]]

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The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

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The number of the entity's American Depositary Shares to be received for each option granted under the share-based compensation plan. Two of the entity's American Depositary Shares represent one share of Jumia.

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The number of shares of the entity's stock to be received for each option granted under the share-based compensation plan.

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The waiting period that must expire before options granted under the share-based compensation plan can be exercised.

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Share based compensation - Option valuation (Details)		3 Months Ended	9 Months Ended
Share based compensation - Option valuation (Details)	May 15, 2020 shares	Sep. 30, 2020 EUR (€)	Sep. 30, 2020 EUR (€) $ / shares	Sep. 30, 2020 EUR (€) shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected dividend yield				0.00%
Options waiting period	4 years			4 years
Number of shares per option \| shares	1			1
Number of ADS per option \| shares				0.5
Options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Risk-free interest rate				0.26%
Expected dividend yield				0.00%
Expected volatility				50.00%
Granted, fair value \| €		€ 1.26	€ 1.26	€ 1.26
Total share-based payment expense recognized \| €		€ 534,000		€ 637,000
American Depository Shares [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Fair value of share \| $ / shares			€ 6.48
Exercise price \| $ / shares			€ 3.67