SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
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3 Months Ended |
9 Months Ended |
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Jan. 29, 2018
USD ($)
shares
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Sep. 30, 2018
USD ($)
shares
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Sep. 30, 2017
USD ($)
shares
|
Sep. 30, 2018
USD ($)
shares
|
Sep. 30, 2017
USD ($)
shares
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| Significant Accounting Policies Disclosure [Line Items] |
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| Exchange ratio in connection with merger |
0.37686604
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|
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| Reverse stock split ratio |
one new share for every ten shares
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| Decrease in fair value of non-employee option grants |
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$ 3,100,000
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| General and administrative expense |
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$ 1,565,992
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$ 1,973,256
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$ 9,865,455
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$ 6,115,088
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| Antidilutive securities excluded from computation of earnings per share | shares |
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9,391,284
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6,509,824
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9,391,284
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6,509,824
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
0.10
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| Pantent Costs |
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| Significant Accounting Policies Disclosure [Line Items] |
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| General and administrative expense |
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$ 89,000
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$ 75,000
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$ 398,000
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$ 310,000
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| Monster Digital, Inc |
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| Significant Accounting Policies Disclosure [Line Items] |
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| Equity interest issued or issuable (in shares) | shares |
1,864,808
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| Liabilities assumed |
$ 1,000,000
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| Employee Stock Option |
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| Significant Accounting Policies Disclosure [Line Items] |
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| Antidilutive securities excluded from computation of earnings per share | shares |
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8,500,000
|
6,500,000
|
9,400,000
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6,500,000
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