Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
12 Months Ended
Dec. 31, 2023
Mar. 11, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
Entity File Number 001-33624    
Entity Registrant Name SINTX Technologies, Inc.    
Entity Central Index Key 0001269026    
Entity Tax Identification Number 84-1375299    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 1885 West 2100 South    
Entity Address, City or Town Salt Lake City    
Entity Address, State or Province UT    
Entity Address, Postal Zip Code 84119    
City Area Code (801)    
Local Phone Number 839-3500    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol SINT    
Security Exchange Name NASDAQ    
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    
Entity Shell Company false    
Entity Public Float     $ 5,175,111
Entity Common Stock, Shares Outstanding   22,680,139  
Documents Incorporated By Reference None    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 270    
Auditor Name TANNER LLC    
Auditor Location Lehi, Utah