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Cover
May 08, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date May 08, 2025
Entity Registrant Name DELCATH SYSTEMS, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-16133
Entity Tax Identification Number 06-1245881
Entity Address, Address Line One 566 Queensbury Avenue
Entity Address, City or Town Queensbury
Entity Address, State or Province NY
Entity Address, Postal Zip Code 12804
City Area Code 518
Local Phone Number 743-8892
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $.01 par value
Trading Symbol DCTH
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0000872912
Amendment Flag false