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SHARE BASED COMPENSATION (Narrative) (Details) - USD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 03, 2017 | Sep. 09, 2015 | Jan. 12, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Ordinary shares authorized |  |  |  | 21,000,000 |  |
Granted |  | 12,569,166 | 6,274,166 | 0 |  | 8,134,375
Weighted average fair value of stock options granted |  |  |  |  |  | $ 0.59
Incremental cost associated with the modification |  | $ 282,581 | $ 241,557 |  |  |
Share-based compensation |  |  |  | $ 4,200,273 | $ 2,702,089 | $ 3,687,951
Unrecognized compensation cost related to non-vested stock options |  |  |  | $ 833,150 |  |
Unrecognized compensation cost, recognition period |  |  |  | 1 year 29 days |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |  | $ 0.59 | $ 0.87 | $ 0.49 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost Adjustment Description |  | The total incremental cost associated with the modification was $282,581, of which $123,322 was recognized immediately for the options vested prior to the date of the modification and the remaining share-based compensation charges of $159,259 will be recognized over the remaining vesting period of the modified options. | The total incremental cost associated with the modification was $241,557, of which $60,107 was recognized immediately for the options vested prior to the date of the modification and the remaining share-based compensation charges of $181,470 will be recognized over the remaining vesting period of the modified options. |  |  |
Restricted Stock or Unit Expense |  |  |  | $ 2,640,410 |  |
Share-based Compensation Award, Batch One [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  | $ 0.38 |  |  |  |
Share-based Compensation Award, Batch Two [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  | 0.35 |  |  |  |
Share-based Compensation Award, Batch Three [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  | 0.38 |  |  |  |
Share-based Compensation Award, Batch Four [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  | 0.37 |  |  |  |
Share-based Compensation Award, Batch Five [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  | $ 0.40 |  |  |  |
Executive officers [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  |  | $ 0.52 |  |  |
Employees [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average fair value of stock options granted |  |  | $ 0.55 |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost, recognition period |  |  |  | 3 years 2 months 1 day |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value |  |  |  | $ 0.98 |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options |  |  |  | $ 9,713,940 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  | 12,653,992 |  |
Restricted Stock Units (RSUs) [Member] | Share Incentive Plan 2014 [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 12,653,992 |  |  |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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