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Nature of Business (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
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 over twenty issued patents and six pending.
Net loss	$ 1,067,957	$ 936,757
Net cash used in operating activities	864,559	816,963
Cash	7,765,692	$ 2,303,342	$ 8,010,161	$ 3,092,172
Working capital	6,927,516
Accumulated deficit	$ 111,490,782		$ 110,422,825

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