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COMMON STOCK OPTIONS AND WARRANTS (Narrative) (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  |  |  |  | 310,290 | 8,572 |  |
Options forfeited |  |  |  |  |  |  | 161,402 | 14,286 |  |
Warrant exercised | $ 14.00 |  |  |  |  |  | $ 6.08 | $ 14.00 |  |
Warrants expired, forfeited, cancelled or exercised |  |  |  |  |  |  | 102,800 |  |  |
Warrant issued |  |  |  |  |  |  |  |  |  | 14,464,000
Common stock shares issued | 1,982,039 |  |  |  |  |  | 3,527,470 | 1,982,039 | 1,505,883 |
Employee Stock Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  |  |  |  |  | 17,144 | 160,152 |
Options forfeited |  |  |  |  |  |  |  | 14,286 |  |
Warrant exercised | $ 14.00 |  |  |  |  |  |  | $ 14.00 | $ 14.00 |
Employee Stock Options [Member] | New Board Member [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options granted |  | 8,572 |  | 8,572 |  |  |  |  |  |
Options granted, value |  | $ 32,092 |  | $ 20,070 |  |  |  |  |  |
Employee Stock Options [Member] | New Board Member [Member] | Vested immediately [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting percentage |  | 50.00% |  | 50.00% |  |  |  |  |  |
Employee Stock Options [Member] | New Board Member [Member] | Vested after 12 months [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting percentage |  | 50.00% |  | 50.00% |  |  |  |  |  |
Employee Stock Options [Member] | Member of senior management team [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options forfeited |  |  | 14,286 |  |  |  |  |  |  |
Options forfeited, value |  |  | $ 43,864 |  |  |  |  |  |  |
Options forfeited percentage |  |  | 100.00% |  |  |  |  |  |  |
Employee Stock Options [Member] | Member of senior management team [Member] | Already vested [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  | 50.00% |  |  |  |  |  |  |
Employee Stock Options [Member] | Staff and Directors [Member] | 2016 Equity Compensation plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  |  |  | 160,152 |  |  |  |
Employee Stock Options [Member] | Staff and Directors [Member] | Vested immediately [Member] | 2016 Equity Compensation plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options vesting |  |  |  |  |  | 131,143 |  |  |  |
Employee Stock Options [Member] | Staff and Directors [Member] | Vested after 12 months [Member] | 2016 Equity Compensation plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options vesting |  |  |  |  |  | 29,009 |  |  |  |
Warrants [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants exercised for cash |  |  | 66,756 |  |  |  |  |  |  |
Warrant exercised | $ 8.79 | $ 19,643 | $ 113,328 | $ 214,286 | $ 21,429 |  | $ 8.41 | $ 8.79 |  |
Proceeds from warrant exercise | $ 2,750 | $ 151,250 | $ 137,500 | $ 1,650,000 | $ 195,000 |  |  |  |  |
Warrants expired, forfeited, cancelled or exercised |  |  |  | 38 |  |  |  | 327,612 |  |
Warrant issued |  | 44,644 |  |  |  |  |  |  |  |
Value of warrants issued in connection of working capital loan |  | $ 1,000,000 |  |  |  |  |  |  |  |
Warrants exchanged |  |  | 9,878 |  |  |  |  |  |  |
Cashless Warrants exchanged |  |  | 46,572 |  |  |  |  |  |  |
Common stock shares issued |  |  | 76,634 |  |  |  |  |  |  |
Warrants [Member] | Warrants to purchase common stock to six shareholders [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Warrant issued |  |  |  |  |  |  |  |  | 35,444 |

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