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Nature of Business (Details Narrative) - USD ($)		12 Months Ended
	Jun. 23, 2020	Dec. 31, 2020	Dec. 31, 2019
Number of patents, description		Intellicheck continues to develop and release innovative products based upon its rich patent portfolio consisting of nineteen issued patents and four pending.
Net income (loss)		$ 558,397	$ (2,548,711)
Net cash used in operating activities		(19,022)	(1,840,850)
Cash		13,121,392	3,350,853
Accumulated deficit		$ (116,376,715)	$ (116,935,112)
Initial Public Offering [Member]
Number of common stock shares issued	1,769,230
Shares issued price per share	$ 6.50
Proceeds from offering	$ 10,710,000

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