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Nature of Business (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of patents, description			Intellicheck continues to develop and release innovative products based upon its rich patent portfolio consisting of twenty issued patents and five pending.
Net loss	$ (568,230)	$ (1,131,219)	$ (2,654,898)	$ (3,299,551)
Net cash used in operating activities			(2,089,687)	$ (3,207,299)
Cash	2,757,327		2,757,327		$ 4,376,017
Working capital	2,614,801		2,614,801
Accumulated deficit	$ (117,041,299)		$ (117,041,299)		$ (114,386,401)

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