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WARRANTS AND NON-INCENTIVE PLAN OPTIONS (Details Textual) - $ / shares | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016 | Dec. 31, 2013
Class of Warrant or Right [Line Items] |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 75.00 |  |
Cazador Acquisition Corporation Ltd [Member] |  |  |
Class of Warrant or Right [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 3 months |  |
Warrants Issued to Purchase Common Stock |  |  | 8,940,000
Class of Warrant or Right, Outstanding | 893,890 | 893,890 |
Class Of Warrant Or Right Weighted Average Remaining Contract Term |  | 9 months |
Common Stock [Member] | Cazador Acquisition Corporation Ltd [Member] | Private Placement [Member] |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants Issued to Purchase Common Stock |  |  | 894,000
Employee Stock Option [Member] |  |  |
Class of Warrant or Right [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 1,602,142 | 1,602,142 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | $ 2.18 | $ 2.18 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 3 years 5 months 1 day | 3 years 11 months 1 day |

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