Nature of Business (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 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 nineteen issued patents and six pending.
Net loss	$ (873,677)	$ (1,100,375)	$ (2,086,668)	$ (2,168,332)
Net cash used in operating activities			(1,596,830)	$ (2,127,580)
Cash	3,061,041		3,061,041		$ 4,376,017
Working capital	2,884,254		2,884,254
Accumulated deficit	$ (116,473,069)		$ (116,473,069)		$ (114,386,401)