STOCK BASED COMPENSATION - Intrinsic Value of Stock Options and Additional Disclosures (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Additional disclosures | |||
| Compensation expense | $ 382 | $ 315 | $ 359 |
| Stock options | |||
| Information related to the 2007 stock incentive plan and the 2003 plan | |||
| Intrinsic value of options exercised | 1,306 | 244 | 55 |
| Cash received from option exercises | 1,556 | 294 | $ 66 |
| Tax benefit realized from option exercises | $ 164 | 31 | |
| Weighted average fair value of options granted (in dollars per share) | $ 3.78 | ||
| Additional disclosures | |||
| Weighted-average period of expected recognition of the cost | 1 year | ||
| Total unrecognized compensation cost related to nonvested stock options granted | $ 30 | ||
| Compensation expense | 91 | 180 | $ 160 |
| Performance units | Executive officers | |||
| Additional disclosures | |||
| Compensation expense | $ 240 | $ 79 | |