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SHARE-BASED PAYMENTS - Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Allocated Share-based Compensation Expense | $ 830 | $ 580 | $ 2,620 | $ 1,690
R S U Weighted |  |  |  |
Number of shares |  |  |  |
Number of nonvested shares, beginning of period (in shares) |  |  | 1,330,469 |
Granted, nonvested, number of shares (in shares) |  |  | 1,390,705 |
Vested, number of shares (in shares) |  |  | (752,580) |
Nonvested options forfeited, number of shares (in shares) |  |  | (101,727) |
Number of nonvested shares, end of period (in shares) | 1,866,868 |  | 1,866,868 |
Weighted Average Grant- Date Fair Value |  |  |  |
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share) |  |  | $ 2.37 |
Granted, nonvested, weighted average grant date fair value (in dollars per share) |  |  | 2.09 |
Vested, weighted average grant date fair value (in dollars per share) |  |  | 2.35 |
Nonvested options forfeited, weighted average grant date fair value (in dollars per share) |  |  | 2.32 |
Nonvested, weighted average grant date fair value, end of period (in dollars per share) | $ 2.17 |  | $ 2.17 |

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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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