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Note 11 - Deferred Revenues - Summary of Deferred Revenues (Details) - EUR (€) € in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred revenues, total	€ 3,205	€ 2,902
Less long term portion	(1,313)	(973)
Deferred revenues, current portion	1,892	1,929
Maintenance [Member]
Deferred revenues, total	1,741	1,246
RPP [Member]
Deferred revenues, total	243	339
Sale of Devices [Member]
Deferred revenues, total	115	289
Extension of Warranty [Member]
Deferred revenues, total	837	855	€ 676
Research and Development Grants [Member]
Deferred revenues, total	€ 269	€ 173

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
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+ References

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