QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Interest Income | $ 26,481 | $ 26,319 | $ 24,527 | $ 23,451 | $ 23,492 | $ 22,645 | $ 21,850 | $ 20,819 | $ 100,778 | $ 88,806 | $ 52,405 |
| Net Interest Income | 23,422 | 23,409 | 21,949 | 21,084 | 21,255 | 20,407 | 19,734 | 18,770 | 89,864 | 80,166 | 46,834 |
| Net Income Attributable to Common Stockholders | $ 5,771 | $ 5,471 | $ 5,254 | $ 6,355 | $ 4,212 | $ 4,047 | $ 3,623 | $ 3,345 | $ 22,851 | $ 15,227 | $ 9,005 |
| Earnings Per Share, Basic (in dollars per share) | $ 0.45 | $ 0.42 | $ 0.41 | $ 0.49 | $ 0.34 | $ 0.41 | $ 0.37 | $ 0.34 | $ 1.78 | $ 1.45 | $ 1.29 |
| Earnings Per Share, Diluted (in dollars per share) | $ 0.44 | $ 0.42 | $ 0.40 | $ 0.49 | $ 0.33 | $ 0.40 | $ 0.36 | $ 0.33 | $ 1.75 | $ 1.43 | $ 1.26 |