XML 11 R1.htm IDEA: XBRL DOCUMENT v3.22.2.2
Cover Page - shares
 9 Months Ended
Sep. 30, 2022
Nov. 02, 2022
Cover [Abstract]    
Entity Registrant Name DELCATH SYSTEMS, INC.  
Entity Central Index Key 0000872912  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Document Quarterly Report true  
Document Transition Report false  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Incorporation, State or Country Code DE  
Entity Interactive Data Current Yes  
Entity File Number 001-16133  
Entity Tax Identification Number 06-1245881  
Entity Address, Address Line One 1633 Broadway  
Entity Address, Address Line Two Suite 22C  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10019  
City Area Code 212  
Local Phone Number 489-2100  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   8,597,682
Document Period End Date Sep. 30, 2022  
Document Fiscal Year Focus 2022  
Trading Symbol DCTH  
Title of 12(b) Security Common stock, $0.01 par value per share  
Document Fiscal Period Focus Q3  
Document Type 10-Q  
Amendment Flag false  
Security Exchange Name NASDAQ