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CONVERTIBLE BRIDGE NOTES (Conversion and Settlement of New Bridge Notes) (Details) - USD ($) |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 29, 2017 | Jun. 29, 2017 | Apr. 28, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2017 | Oct. 31, 2017
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  | $ 3,416,000 | $ 4,522,000 |  |
Loss on extinguishment of debt related to unamortized discount |  |  |  |  |  | 1,391,000 |  |  |
Amortization of deferred financing costs and debt discount |  |  |  |  |  | 1,898,000 | 33,000 |  |
Bridge Loan [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  | $ 2,436,551 |  |  |  |  |  |
Debt instrument, face amount |  |  | 2,000,000 |  |  |  |  |  |
Redemption premium |  |  | $ 400,000 |  |  |  |  |  |
Premium rate changed upon settlement of debt |  |  | 20.00% |  |  |  |  |  |
Accrued interest |  |  | $ 36,551 |  |  |  | 61,073 |  |
Repayments of debt |  |  | 1,536,551 |  |  |  |  |  |
Debt converted |  |  | $ 900,000 | $ 900,000 | $ 900,000 | 1,787,000 |  |  |
Loss on extinguishment of debt and induced conversion of convertible bridge notes |  |  |  |  |  | 1,000,000 |  |  |
Loss on extinguishment of debt related to unamortized discount |  |  |  |  |  | 400,000 |  |  |
Bridge Loan [Member] | Convertible Bridge Loan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  | 0 | $ 695,000 |  |
Amortization of deferred financing costs and debt discount |  |  |  |  |  | $ 1,900,000 |  |  |
Preferred Class B |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Shares callable by warrant (in shares) |  |  |  | 400 |  |  |  |  |
Share price (in dollars per share) |  |  | $ 1,000 |  |  |  |  |  |
Proceeds from issuance of common stock |  |  | $ 6,000,000 |  |  |  |  |  |
Conversion price (in dollars per share) |  |  |  | $ 2.50 |  |  |  | $ 1.40 | $ 2.50
Common Stock [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Shares callable by warrant (in shares) |  |  | 400 |  |  |  |  |  |
Number of shares converted from debt instrument (in shares) | 1,414,700 |  |  |  |  |  |  |  |
Common Stock [Member] | Bridge Loan [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of shares converted from debt instrument (in shares) |  |  | 359,999 | 359,999 | 359,999 |  |  |  |
Conversion price (in dollars per share) |  |  | $ 2.50 |  |  |  |  |  |
Warrants issued on conversion (in shares) |  |  | 359,999 |  |  |  |  |  |
Loss on extinguishment of debt and induced conversion of convertible bridge notes |  |  |  | $ 1,000,000 |  |  |  |  |
Common Stock [Member] | Bridge Loan [Member] | Convertible Bridge Loan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Accrued interest | $ 192,000 | $ 192,000 |  |  |  |  |  |  |
Debt converted |  | $ 695,000 |  |  |  |  |  |  |
Number of shares converted from debt instrument (in shares) |  | 155,639 |  |  |  |  |  |  |
Public Stock Offering |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Shares sold in offering (in shares) |  |  | 6,000 |  |  |  |  |  |
Sale of stock, number of warrants per unit (in shares) |  |  | 1 |  |  |  |  |  |
Public Stock Offering | Preferred Class B |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Shares sold in offering (in shares) |  |  |  | 6,000 |  |  |  |  |
Preferred Class B |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares per unit (in shares) |  |  | 1 |  |  |  |  |  |

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