Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Apr. 21, 2023	Jun. 30, 2022
Document Information [Line Items]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
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	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 65.6
Entity Common Stock, Shares Outstanding (in shares)		2,625,476
Amendment Flag	true
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Central Index Key	0001705338
Auditor Name	BDO USA, LLP
Auditor Location	New York, NY
Auditor Firm ID	243
Amendment Description	Spark Networks SE (“Spark Networks” or “the Company”) and “we,” “us” and “our” (collectively, Spark Networks SE and its consolidated subsidiary) is filing this Amendment No.1 to its Annual Report on Form 10-K for the fiscal year ended December 31, 2022, as originally filed with the Securities and Exchange Commission (“SEC”) on March 31, 2023, (the "Original Form 10-K”), to add information required in Part III of its Annual Report on Form 10-K because a definitive proxy statement containing such information may not be filed within 120 days after the end of the fiscal year covered by the Form 10-K. The reference on the cover of the Original Form 10-K to the incorporation by reference to portions of its definitive proxy statement into Part III of the Original Form 10-K is hereby deleted. In addition, Item 15(b) of Part IV is being amended solely to add as exhibits certain new certifications in accordance with Rule 13a-14(a) promulgated by the SEC under the Securities Exchange Act of 1934.
American Depository Share (ADS)
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
Ordinary Shares
Document Information [Line Items]
Title of 12(b) Security	Ordinary shares, €1.00 nominal value per share*
Trading Symbol	LOV
Security Exchange Name	NASDAQ