LEASES: - Additional Information (Details)		1 Months Ended			12 Months Ended
	Apr. 01, 2021 USD ($)	Sep. 30, 2021 USD ($)	Apr. 30, 2021 USD ($)	Mar. 31, 2021 USD ($) item	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 31, 2021 m²
Lessee, Operating Lease, Discount Rate					9.80%
Operating Lease, Payments					$ 1,968,000	$ 937,000	$ 906,000
Operating Lease, Weighted Average Remaining Lease Term					14 years 3 months 18 days	4 years
Security deposit					$ 256,591	$ 125,892
Right of use asset					13,423,472	1,029,123
Operating lease lability					$ 13,821,509	1,029,123
Twentieth Amendment To lease
Operating Lease, Expense			$ 35,000
Additional Operating Leases Rent Expense Net			30,000
Operating lease base rent for remaining space			20,000
Security deposit			150,000			$ 54,000
Monthly operating expenses			11,000
CytoSorbents Medical, Inc
Number of times lease renewal options available | item				2
Renewal term				5 years
Rent abatement term				6 months
CytoSorbents Europe GmbH
Area of Land | m²								1,068
Operating Lease, Expense	$ 7,784
Lease term	5 years
Other costs	$ 239
Right of use asset	594,000
Operating lease lability	$ 594,000
United States | CytoSorbents Medical, Inc
Lessee, Operating Lease, Discount Rate	9.80%
Remaining lease term				15 years 6 months
Annual rent expense increment rate				2.75%
Percentage of total building space occupied				92.30%
Allowance for building improvement				$ 1,455,000
Right of use asset	$ 11,600,000
Operating lease lability	$ 11,600,000
United States | Letter of credit | CytoSorbents Medical, Inc
Security Amount			$ 1,334,000
United States | Initial early term | CytoSorbents Medical, Inc
Operating Lease, Expense				25,208
United States | Early term | CytoSorbents Medical, Inc
Operating Lease, Expense				88,254
United States | First year of remaining lease term | CytoSorbents Medical, Inc
Operating Lease, Expense				$ 111,171
Germany
Operating Lease, Expense		$ 12,100
Additional Operating Leases Rent Expense Net		$ 3,000