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STOCKHOLDERS' EQUITY (Div and Treas) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 2 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 27, 2016 | Feb. 22, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Oct. 31, 2015
Dividends on Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared (in dollars per share) | $ 0.08 |  | $ 0.08 | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.26 | $ 0.15 | $ 0.12 |
Dividend Amount |  |  | $ 2,097 | $ 1,578 | $ 1,578 | $ 1,584 | $ 1,644 | $ 823 | $ 816 | $ 819 | $ 6,837 | $ 4,102 | $ 3,233 |
Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cost of shares repurchased during the period |  |  |  |  |  |  |  |  |  |  | $ 12,765 |  |  |
Treasury stock (in shares) |  |  | 2,080,187 |  |  |  | 1,677,932 |  |  |  | 2,080,187 | 1,677,932 |  |
Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of stock repurchases authorized |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000
Number of shares repurchased during the period |  |  |  |  |  |  |  |  |  |  | 402,255 |  |  |
Aggregate cost of shares repurchased during the period |  |  |  |  |  |  |  |  |  |  | $ 12,800 |  |  |
Amount available for repurchase under the current buyback program |  |  | $ 47,200 |  |  |  |  |  |  |  | $ 47,200 |  |  |
Subsequent Event | Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares repurchased during the period |  | 104,002 |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cost of shares repurchased during the period |  | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |
Amount available for repurchase under the current buyback program |  | $ 45,200 |  |  |  |  |  |  |  |  |  |  |  |

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