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The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

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The percentage of the entity's revenue. [Refer: Revenue]

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The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Financial instruments, class [member]]

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For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Represents the amount of change in interest expense due to change in interest rate.

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The number of customer loans held by the entity.

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Number of 3D printers serving as collateral.

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The reasonably possible percentage of the increase in the designated risk component used to determine the value of the financial instrument. Excludes defined benefit plan obligations.

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Financial risk management (Details) € in Thousands, £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 GBP (£) item	Dec. 31, 2015 EUR (€)	Dec. 31, 2014	Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 EUR (€) item	Oct. 31, 2016 EUR (€)	Sep. 30, 2016 EUR (€)	May 31, 2016 EUR (€)
Financial risk
Change in interest rate( as a percent)	10.00
Impact of change in interest rate	€ 2
Credit risk
Financial risk
Maximum exposure to credit risk			€ 24,600				€ 27,100
Number of customer loans \| item		0					0
Liquidity risk
Financial risk
Loan agreements with Kreissparkasse Augsburg							€ 1,000	€ 700	€ 2,000	€ 1,000
Interest percentage payable		2.72%					2.72%	2.29%	2.47%	2.35%
Cash deposit							€ 2,000
Number of 3D printers serving as collateral \| item		3					3
Eurozone \| Foreign exchange risk
Financial risk
Percentage of revenue generated		50.30%
Revenue invoiced (as a percent)		70.00%	84.00%	75.00%
voxeljet UK \| Foreign exchange risk
Financial risk
Amount borrowed by affiliate		£ 8.4					€ 9,500
Increase in designated risk component (as a percent)		10.00%					10.00%
Loss due to relative change							€ 0
voxeljet America \| Foreign exchange risk
Financial risk
Amount borrowed by affiliate					$ 6.5	€ 5,400
Increase in designated risk component (as a percent)		10.00%					10.00%
Loss due to relative change							€ 0