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Cover
Mar. 21, 2024
Mar. 21, 2023
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Mar. 21, 2024  
Entity Registrant Name Intellicheck, Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-15465  
Entity Tax Identification Number 11-3234779  
Entity Address, Address Line One 200 Broadhollow Road  
Entity Address, Address Line Two Suite 207  
Entity Address, City or Town Melville  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 11747  
City Area Code 516  
Local Phone Number 992-1900  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Common Stock, $.001 par value  
Trading Symbol IDN  
Security Exchange Name NASDAQ  
Entity Emerging Growth Company   false
Amendment Flag false  
Entity Central Index Key 0001040896