Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Mar. 20, 2026	Jun. 30, 2024
Document Information [Line Items]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Document Transition Report	false
Entity File Number	001-38677
Entity Registrant Name	Catheter Precision, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	38-3661826
Entity Address, Address Line One	1670 Highway 160 West, Suite 205
Entity Address, City or Town	Fort Mill
Entity Address, State or Province	SC
Entity Address, Postal Zip Code	29708
City Area Code	973
Local Phone Number	691-2000
Title of 12(b) Security	Common Stock, $0.0001 par value
Trading Symbol	VTAK
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 3.9
Entity Common Stock, Shares Outstanding (in shares)		2,692,473
Amendment Description	EXPLANATORY NOTE
Entity Central Index Key	0001716621
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	true