SHARE BASED COMPENSATION (Summary of Non-vested Shares Activity) (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Number of Non-vested Shares | |||
| Outstanding, beginning balance | 10,000 | 25,000 | 27,780 |
| Granted | 129,835 | 20,000 | 25,000 |
| Vested | (17,367) | (35,000) | (27,780) |
| Forfeited | (15,701) | ||
| Outstanding, ending balance | 106,767 | 10,000 | 25,000 |
| Weighted Average Grant Date Fair Value | |||
| Outstanding, beginning balance | $ 10.82 | $ 9.63 | $ 9.06 |
| Granted | 14.93 | 10.82 | 9.63 |
| Vested | 14.08 | 9.97 | 9.06 |
| Forfeited | 14.47 | ||
| Outstanding, ending balance | $ 14.75 | $ 10.82 | $ 9.63 |