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STOCK BASED COMPENSATION (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Apr. 01, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Stock-based awards classified as liabilities |  | $ 0 | $ 0
Unrecognized stock-based compensation expense related to stock options |  | 0 |
Stock dividend (as a percent) | 25.00% |  |
Restricted Stock Units |  |  |
Unrecognized stock-based compensation expense related to non-vested restricted stock units |  | $ 278 |
Weighted average period over which unearned stock-based compensation is expected to be recognized |  | 1 year 3 months 18 days |

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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. + 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 (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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