Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 27, 2024	Jun. 30, 2023
Document Information [Line Items]
Entity Central Index Key	0001038277
Entity Registrant Name	INTERNATIONAL ISOTOPES INC
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	000-22923
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	74-2763837
Entity Address, Address Line One	4137 Commerce Circle
Entity Address, City or Town	Idaho Falls
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83401
City Area Code	208
Local Phone Number	524-5300
Title of 12(g) Security	COMMON STOCK, $.01 PAR VALUE
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			$ 13,000,000
Entity Common Stock, Shares Outstanding		520,081,365
Auditor Name	Haynie & Company
Auditor Location	Salt Lake City, UT
Auditor Firm ID	457