NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - Earnings per common share and related information (Details 2) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Accounting Policies [Abstract] | |||
| Net income, net of noncontrolling interest | $ 18,462 | $ 11,428 | $ 9,949 |
| Less preferred stock dividends | 633 | 212 | 244 |
| Net income available to common shareholders | $ 17,829 | $ 11,216 | $ 9,705 |
| Weighted average common shares outstanding | 7,158,367 | 4,003,988 | 4,165,254 |
| Effect of dilutive stock instruments | 356,000 | 358,000 | 146,000 |
| Diluted weighted average common shares outstanding | 7,513,971 | 4,362,213 | 4,311,347 |
| Basic earnings per common share (in dollars per share) | $ 2.49 | $ 2.80 | $ 2.33 |
| Diluted earnings per common share (in dollars per share) | $ 2.37 | $ 2.57 | $ 2.25 |