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LIQUIDITY (Narrative) (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
LIQUIDITY [Abstract] |  |  |  |  |  |  |
Net income | $ 1,465,889 | $ 2,147,049 | $ 1,949,791 | $ (44,169) | $ 3,612,938 | $ 1,905,622 |
Net cash used in operations |  |  |  |  | 3,152,753 | $ 2,711,334 |
Working capital deficit | 4,991,582 |  |  |  | 4,991,582 |  |
Accumulated deficit | $ 36,353,653 |  |  |  | 36,353,653 |  | $ 32,740,715
Proceeds from an underwritten offering |  |  |  |  | $ 8,100,000 |  |

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