MERGER AND FINANCING (Details)
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3 Months Ended |
9 Months Ended |
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Jan. 29, 2018
USD ($)
$ / shares
shares
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Mar. 31, 2018
USD ($)
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Sep. 30, 2019
USD ($)
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Sep. 30, 2018
USD ($)
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Apr. 29, 2019
$ / shares
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Apr. 25, 2019
$ / shares
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| Business Acquisition [Line Items] |
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| Proceeds from issuance of common stock |
$ 18,100,000
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$ 20,706,919
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$ 18,132,661
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| Net proceeds from issuance of common stock after deducting stock issuance costs |
16,500,000
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| Placement agent fees |
$ 1,600,000
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| Warrant term |
5 years
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5 years
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| Number of warrants issued (in shares) | shares |
1,400,000
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| Exercise price of warrants or rights (in usd per share) | $ / shares |
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$ 2.13
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| Allocation of warrants to liabilities |
$ 2,000,000
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$ 1,995,000
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| Warrants issued to placement agents |
$ 913,000
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$ 913,000
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| Warrant |
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| Business Acquisition [Line Items] |
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| Exercise price of warrants or rights (in usd per share) | $ / shares |
$ 3.18
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$ 2.13
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| Placement Agent |
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| Business Acquisition [Line Items] |
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| Warrant term |
5 years
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| Number of warrants issued to placement agents (in shares) | shares |
349,555
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| Placement Agent | Warrant |
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| Business Acquisition [Line Items] |
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| Exercise price of warrants or rights (in usd per share) | $ / shares |
$ 2.54
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| Affiliates |
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| Business Acquisition [Line Items] |
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| Warrant term |
5 years
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| Number of warrants issued to affiliates (in shares) | shares |
279,862
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| Affiliates | Warrant |
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| Business Acquisition [Line Items] |
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| Exercise price of warrants or rights (in usd per share) | $ / shares |
$ 3.18
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| Convertible Promissory Notes |
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| Business Acquisition [Line Items] |
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| Original debt amount |
$ 8,600,000
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| Conversion price (in usd per share) | $ / shares |
$ 0.72
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| Conversion discount percentage |
25.00%
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| Beneficial conversion feature |
$ 3,100,000
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| Accured Interest |
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| Business Acquisition [Line Items] |
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| Original debt amount |
$ 582,000
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| Measurement Input, Expected Dividend Rate |
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| Business Acquisition [Line Items] |
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| Warrants and rights outstanding, measurement input |
0.000
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| Expected stock price volatility |
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| Business Acquisition [Line Items] |
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| Warrants and rights outstanding, measurement input |
0.848
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| Risk-free interest rate |
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| Business Acquisition [Line Items] |
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| Warrants and rights outstanding, measurement input |
0.025
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