Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2020
Entity File Number	001-36792
Entity Registrant Name	CYTOSORBENTS CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-0373793
Entity Address, Address Line One	7 Deer Park Drive
Entity Address, Address Line Two	Suite K
Entity Address, City or Town	Monmouth Junction
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	08852
City Area Code	732
Local Phone Number	329-8885
Title of 12(b) Security	Common Stock
Trading Symbol	CTSO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		43,157,879
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001175151
Amendment Flag	false