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Nature of Business (Details Narrative) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 04, 2014 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Number of patents, description |  |  |  |  |  |  |  |  |  | Intellicheck continues to develop and release innovative products based upon its rich patent portfolio consisting of eighteen issued patents and six pending. |
Net loss |  | $ 664,000 | $ 1,131,000 | $ 1,101,000 | $ 1,068,000 | $ 2,910,000 | $ 1,075,000 | $ 1,099,000 | $ 937,000 | $ 3,963,576 | $ 6,020,505
Net cash used in operating activities |  |  |  |  |  |  |  |  |  | 4,220,611 | 3,745,285
Cash |  | 4,376,017 |  |  |  | 8,010,161 |  |  |  | 4,376,017 | 8,010,161
Accumulated deficit |  | $ 114,386,401 |  |  |  | $ 110,422,825 |  |  |  | $ 114,386,401 | 110,422,825
Common stock value |  |  |  |  |  |  |  |  |  |  | $ 8,512,861
IPO [Member] |  |  |  |  |  |  |  |  |  |  |
Common stock value | $ 4,168,750 |  |  |  |  |  |  |  |  |  |
Common stock per share | $ 2.25 |  |  |  |  |  |  |  |  |  |
Proceeds from equity raise | $ 8,513,000 |  |  |  |  |  |  |  |  |  |

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