Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2024	Mar. 17, 2025	Jun. 30, 2024
Document Information [Line Items]
Entity Central Index Key	0001716621
Entity Registrant Name	Catheter Precision, Inc.
Amendment Flag	true
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Document Transition Report	false
Entity File Number	001-38677
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	NYSEAMER
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			$ 3,900,000
Entity Common Stock, Shares Outstanding		9,268,632
Amendment Description	This Amendment No. 1 (this "Amendment") amends the Annual Report on Form 10-K for the year ended December 31, 2024 of Catheter Precision, Inc. (the "Company"), filed with the Securities and Exchange Commission (the "SEC") on March 31, 2025 (the "Original Form 10-K").  The purpose of this Amendment is to amend Part III, Item 13 of the Original Form 10-K to include information previously omitted from the Original Form 10-K in reliance on General Instruction G(3) to Form 10-K.  Accordingly, Part III, Item 13 of the Original Form 10-K is hereby amended and restated as set forth below.  The information included in the Form 10-K as required by Part III of Form 10-K is more limited than what is required to be included in the definitive proxy statement to be filed in connection with our annual meeting of stockholders.  Accordingly, the definitive proxy statement to be filed at a later date will include additional information not required by Part III of Form 10-K.   The reference on the cover page of the Original Form 10-K to the incorporation by reference of our definitive proxy statement into Part III of the Original Form 10-K is hereby deleted.   In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), new certifications by our principal executive officer and principal financial officer are filed as exhibits to this Amendment under Item 15 of Part IV hereof.  Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3,4 and 5 of the certifications have been omitted.   Except as stated herein, the Amendment does not reflect events occurring after the filing of the Original Form 10-K with the SEC on March 31, 2025 and no attempt has been made in this Amendment to modify or update other disclosures as presented in the Original Form 10-K.