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Nature of Business (Details Narrative) - USD ($)		3 Months Ended		6 Months Ended
	Jun. 23, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Number of patents, description				Intellicheck continues to develop and release innovative products based upon its rich patent portfolio consisting of twenty issued patents and four pending patents.
Net loss		$ (760,273)	$ (873,677)	$ (733,671)	$ (2,086,668)
Net cash used in operating activities				(262,313)	$ (1,596,830)
Cash		14,589,615		14,589,615		$ 3,350,853
Working capital		13,623,080		13,623,080
Accumulated deficit		$ (117,668,783)		$ (117,668,783)		$ (116,935,112)
Public Offering [Member]
Number of common stock shares issued	1,769,230
Shares issued price per share	$ 6.50
Proceeds from offering	$ 10,570,000

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