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LONG-TERM DEBT (Convertible Bridge Notes) (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 11, 2018 USD ($) $ / shares shares | Apr. 30, 2018 USD ($) $ / shares shares | Jun. 30, 2018 USD ($) item $ / shares shares | Jun. 30, 2018 USD ($) $ / shares shares | Jun. 30, 2017 USD ($) | Jul. 31, 2018 USD ($) | Apr. 20, 2018 USD ($) | Dec. 31, 2017 USD ($) $ / shares | Aug. 31, 2017 $ / shares
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  | $ 3,490,000 | $ 3,490,000 |  |  |  | $ 3,416,000 |
Proceeds from convertible bridge notes |  |  |  | 1,660,000 | $ 1,365,000 |  |  |  |
Payments of financial advisor fees |  | $ 116,000 |  |  |  |  |  |  |
Derivative liability from debt discount |  |  | $ 100,000 | $ 100,000 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  | 6,913,141 | 6,913,141 |  |  |  |  |
Convertible Bridge Loan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from convertible bridge notes |  |  | $ 600,000 |  |  |  |  |  |
Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 3,296,702 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 0.30 |  |  |  |  |  |  |
Convertible Promissory Note Warrants [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  |  |  | $ 1.40 | $ 3.00
April 2018 Warrants [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Conversion price per share | $ / shares |  | $ 0.75 |  |  |  |  |  |  |
Conversion ratio |  | 150 |  |  |  |  |  |  |
Proceeds from convertible bridge notes |  |  | $ 1,100,000 |  |  |  |  |  |
Stock rights issued (in shares) | shares |  | 3,648,352 |  |  |  |  |  |  |
Warrants, fair value |  | $ 1,100,000 |  |  |  |  |  |  |
Advisor fees as a percentage of proceeds |  | 7.00% |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 0.75 |  |  |  |  |  |  |
April 2018 Warrants, First Half [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term |  |  | 5 years | 5 years |  |  |  |  |
April 2018 Warrants, First Half [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term |  |  | 1 year |  |  |  |  |  |
April 2018 Warrants, Second Half [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term |  |  | 1 year | 1 year |  |  |  |  |
April 2018 Warrants, Second Half [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term |  |  | 5 years |  |  |  |  |  |
Advisor Warrants [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term |  |  | 4 years |  |  |  |  |  |
Conversion price per share | $ / shares |  | $ 0.75 |  |  |  |  |  |  |
Stock rights issued (in shares) | shares |  | 232,000 |  |  |  |  |  |  |
Warrants, fair value |  | $ 100,000 |  |  |  |  |  |  |
Advisor Warrants [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stock rights issued (in shares) | shares |  | 232,000 |  |  |  |  |  |  |
Warrants, fair value |  | $ 100,000 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 0.75 |  |  |  |  |  |  |
Convertible Debt [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  | $ 9,000 | $ 9,000 |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 8.00% | 8.00% |  |  |  |  |
Discount percentage |  |  | 9.00% |  |  |  |  |  |
Conversion price per share | $ / shares |  |  | $ 0.50 | $ 0.50 |  |  |  |  |
Convertible debt, threshold consecutive trading days | item |  |  | 10 |  |  |  |  |  |
Conversion threshold percentage of stock price trigger |  |  | 80.00% |  |  |  |  |  |
Total debt |  |  | $ 1,824,176 | $ 1,824,176 |  |  |  |  |
Proceeds from convertible bridge notes |  |  | 1,660,000 |  |  |  |  |  |
Early repayment trigger, amount of gross proceeds |  |  | $ 7,000,000 |  |  |  |  |  |
Percentage per month charged as damages if registration statement not filed by deadline |  |  | 1.00% |  |  |  |  |  |
Debt discount |  |  | $ 164,000 | 164,000 |  |  |  |  |
Debt issuance costs, net |  |  | 164,000 | 164,000 |  |  |  |  |
Beneficial conversion feature |  |  | 1,100,000 |  |  |  |  |  |
Net debt issuance costs and debt discounts |  |  | 2,700,000 | 2,700,000 |  |  |  |  |
Loss on issuance of convertible notes |  |  | 900,000 |  |  |  |  |  |
Amortizatin od debt idscount |  |  | $ 9,000 | $ 9,000 |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period One [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  |  |  | 105.00% |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period Two [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  |  |  | 110.00% |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period Three [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  |  |  | 115.00% |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan | Minimum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Conversion price per share | $ / shares |  |  | $ 0.30 | $ 0.30 |  |  |  |  |
Convertible Debt [Member] | Convertible Bridge Loan | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  |  | 1 year |  |  |  |  |
Subsequent Events | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount | $ 382,526 |  |  |  |  |  |  |  |
Debt instrument, term | 1 year |  |  |  |  |  |  |  |
Subsequent Events | July 2018 Warrants [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stock rights issued (in shares) | shares | 765,052 |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares | $ 0.75 |  |  |  |  |  |  |  |
Subsequent Events | July 2018 Warrants First Half [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term | 5 years |  |  |  |  |  |  |  |
Subsequent Events | July 2018 Warrants Second Half [Member] | Note Agreement 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, term | 1 year |  |  |  |  |  |  |  |
Subsequent Events | Convertible Debt [Member] | July 2018 Bridge Notes [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 348,099 |  |  |
Total debt |  |  |  |  |  | 382,526 |  |  |
Subsequent Events | Convertible Debt [Member] | July 2018 Bridge Notes [Member] | Debt Instrument, Redemption, Period One [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | 495,950 |  |  |
Subsequent Events | Convertible Debt [Member] | July 2018 Bridge Notes [Member] | Debt Instrument, Redemption, Period Two [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  | $ 545,000 |  |  |

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