The amount of outstanding funds that the entity is obligated to repay.

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The interest rate on borrowings. [Refer: Borrowings]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of cash collateral pledged that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial liabilities. [Refer: Financial liabilities]

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No definition available.

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The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Contingent liabilities [member]; Financial assets]

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The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]]

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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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The cash inflow from borrowings obtained. [Refer: Borrowings]

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The amount of current borrowings. [Refer: Borrowings]

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Period between issuance and expiration of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under borrowing agreement.

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No definition available.

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Represents the maximum borrowing to total research and development expenditures and manufacturing capital expenditures as a percentage.

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No definition available.

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Number of 3D printers serving as collateral.

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Represents the number of tranches for borrowings.

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No definition available.

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The amount the entity is pledging to the lender on its failure to to reach certain ratio with respect to its ability to service its debt.

+ References

No definition available.

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Additional disclosures to financial instruments - Loans (Details) € in Thousands				1 Months Ended		12 Months Ended
	Nov. 01, 2018 shares	Dec. 22, 2017 EUR (€) shares	Nov. 09, 2017 EUR (€) tranche	Jun. 30, 2020 EUR (€) shares	Apr. 30, 2019 EUR (€) item	Dec. 31, 2020 EUR (€) shares	Dec. 31, 2019 EUR (€) item	Dec. 31, 2018 EUR (€)	May 29, 2020	Mar. 31, 2020 EUR (€)	Dec. 31, 2016 EUR (€)	Feb. 29, 2016 EUR (€)
Additional disclosures to financial instruments
Face value						€ 27,336	€ 22,732
Carrying amount						26,266	21,156
Cash collateral						2,000	2,000
Proceeds from issuance of long-term debt						€ 5,000	529	€ 1,639
Increase in shares issued (in shares) \| shares						4,836,000
Property
Additional disclosures to financial instruments
Assets as collateral to bank						€ 15,000	5,000
Machinery
Additional disclosures to financial instruments
Assets as collateral to bank						€ 1,104	1,618
Kreissparkasse Augsburg, Germany
Additional disclosures to financial instruments
Cash collateral							2,000
Amount to be pledged to lender on failure to meet ability to service debt ratio							€ 2,000
Number of 3D printers serving as collateral \| item							3
Secured Bank Loan, 2.47%
Additional disclosures to financial instruments
Nominal interest rate						2.47%						2.47%
Face value						€ 2,000	€ 2,000					€ 2,000
Carrying amount						€ 1,695	1,774
Secured Bank Loan, 2.72%
Additional disclosures to financial instruments
Nominal interest rate						2.72%						2.72%
Face value						€ 1,000	1,000					€ 1,000
Carrying amount						€ 848	887
Secured Bank Loan, 1.75%
Additional disclosures to financial instruments
Nominal interest rate						1.75%						1.75%
Face value						€ 1,000	1,000					€ 1,000
Carrying amount						€ 887	899
Secured Bank Loan, 2.42%
Additional disclosures to financial instruments
Nominal interest rate						2.42%					2.42%
Face value						€ 500	500				€ 500
Carrying amount						€ 429	448
Secured Bank Loan, 2.73%
Additional disclosures to financial instruments
Nominal interest rate						2.73%					2.73%
Face value						€ 500	500				€ 500
Carrying amount						€ 472	446
Secured Bank Loan, 2.49%
Additional disclosures to financial instruments
Nominal interest rate					2.49%	2.49%
Face value					€ 500	€ 500	500
Carrying amount						€ 332	429
Number of 3D printers serving as collateral \| item					2
Maturity term					5 years
Secured bank loan, 3.27%
Additional disclosures to financial instruments
Nominal interest rate						3.27%
Face value						€ 800	800
Carrying amount							73
Secured Bank Loan, 2.29%
Additional disclosures to financial instruments
Nominal interest rate						2.29%
Face value						€ 700	700
Carrying amount						€ 110	254
Secured Bank Loan, 2.35%
Additional disclosures to financial instruments
Nominal interest rate						2.35%
Face value						€ 1,000	1,000
Carrying amount						€ 70	278
Secured Bank Loan, 2.48%
Additional disclosures to financial instruments
Nominal interest rate						2.48%
Face value						€ 675	675
Carrying amount						€ 238	376
Unsecured Bank Loan, 3.92%
Additional disclosures to financial instruments
Nominal interest rate						3.92%
Face value						€ 29	29
Carrying amount						€ 24	24
Unsecured Bank Loan, 2.90%
Additional disclosures to financial instruments
Nominal interest rate						2.90%
Face value						€ 40	40
Carrying amount						€ 10	17
Secured Bank Loan, 0.00%
Additional disclosures to financial instruments
Nominal interest rate						0.00%
Face value						€ 10,000	10,000
Carrying amount						€ 12,549	11,641
Secured Bank Loan, 12.00%
Additional disclosures to financial instruments
Nominal interest rate						12.00%
Face value						€ 5,000
Carrying amount						5,478
Lease liability
Additional disclosures to financial instruments
Face value						3,592	3,988
Carrying amount						€ 3,124	3,610
Lease liability \| Minimum
Additional disclosures to financial instruments
Nominal interest rate						1.60%
Lease liability \| Maximum
Additional disclosures to financial instruments
Nominal interest rate						9.30%
European Investment Bank
Additional disclosures to financial instruments
Assets as collateral to bank										€ 10,000
Maximum borrowing capacity			€ 25,000
Number of tranches \| tranche			3
Maximum borrowing to total research and development and manufacturing capital expenditures (as a percent)			50.00%
Current debt							€ 10,000
European Investment Bank \| PIK interest rate
Additional disclosures to financial instruments
Nominal interest rate									5.00%
European Investment Bank \| Fixed interest rate
Additional disclosures to financial instruments
Nominal interest rate									7.00%
EIB-Tranche one
Additional disclosures to financial instruments
Nominal interest rate			0.00%
Proceeds from issuance of long-term debt		€ 10,000
Maturity term		5 years
Maximum borrowing capacity			€ 10,000
Increase in shares issued (in shares) \| shares	254,527	195,790
Expiration term		10 years
EIB-Tranche two
Additional disclosures to financial instruments
Nominal interest rate			7.00%
Face value				€ 5,000
Proceeds from issuance of long-term debt				€ 5,000
Maturity term				5 years
Maximum borrowing capacity			€ 8,000
Increase in shares issued (in shares) \| shares				404,928
Expiration term				10 years
EIB-Tranche three
Additional disclosures to financial instruments
Nominal interest rate			3.00%
Maximum borrowing capacity			€ 7,000