Cover Page - shares	3 Months Ended
	Mar. 31, 2022	May 02, 2022
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-38252
Entity Registrant Name	Spark Networks SE
Entity Incorporation, State or Country Code	2M
Entity Address, Address Line One	Kohlfurter Straße 41/43
Entity Address, City or Town	Berlin
Entity Address, Country	DE
Entity Address, Postal Zip Code	10999
Country Region	+49
City Area Code	30
Local Phone Number	868000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,619,586
Entity Central Index Key	0001705338
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
ADR
Document Information [Line Items]
Title of 12(b) Security	American Depository Shares each representing one-tenth of an ordinary share
Trading Symbol	LOV
Security Exchange Name	NASDAQ
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Ordinary shares, €1.00 nominal value per share*
Trading Symbol
Security Exchange Name