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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Series A Preferred Dividends | Series B Preferred Dividends | Preferred Stock | Common Stock | Additional Paid-in-Capital | Treasury Stock | Retained Earnings | Retained Earnings Series A Preferred Dividends | Retained Earnings Series B Preferred Dividends | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2015 | $ 268,038 |  |  | $ 9,746 | $ 181 | $ 194,297 | $ (560) | $ 64,097 |  |  | $ 277
Beginning Balance (in shares) at Dec. 31, 2015 |  |  |  |  | 18,018,200 |  | 34,523 |  |  |  |
Issuance of restricted stock awards |  |  |  |  | $ 1 | (1) |  |  |  |  |
Issuance of restricted stock awards (in shares) |  |  |  |  | 101,105 |  |  |  |  |  |
Stock based compensation | 1,279 |  |  |  |  | 1,279 |  |  |  |  |
Forfeiture of restricted stock awards |  |  |  |  |  | 101 | $ (101) |  |  |  |
Forfeiture of restricted stock awards (in shares) |  |  |  |  | (6,759) |  | 6,759 |  |  |  |
Excess tax benefit on restricted stock vested | 35 |  |  |  |  | 35 |  |  |  |  |
Purchase of treasury stock | 80 |  |  |  |  |  | $ 80 |  |  |  |
Purchase of treasury stock (in shares) |  |  |  |  | 5,053 |  | (5,053) |  |  |  |
Preferred dividends |  | $ (182) | $ (207) |  |  |  |  |  | $ (182) | $ (207) |
Net income | 9,632 |  |  |  |  |  |  | 9,632 |  |  |
Other comprehensive income | 1,248 |  |  |  |  |  |  |  |  |  | 1,248
Ending Balance at Jun. 30, 2016 | 279,763 |  |  | 9,746 | $ 182 | 195,711 | $ (741) | 73,340 |  |  | 1,525
Ending Balance (in shares) at Jun. 30, 2016 |  |  |  |  | 18,107,493 |  | 46,335 |  |  |  |
Beginning Balance at Dec. 31, 2016 | 289,345 |  |  | 9,746 | $ 182 | 197,157 | $ (1,374) | 83,910 |  |  | (276)
Beginning Balance (in shares) at Dec. 31, 2016 |  |  |  |  | 18,078,247 |  | 76,118 |  |  |  |
Issuance of restricted stock awards (in shares) |  |  |  |  | 40,541 |  |  |  |  |  |
Stock based compensation | 1,025 |  |  |  |  | 1,025 |  |  |  |  |
Forfeiture of restricted stock awards |  |  |  |  |  | 19 | $ (19) |  |  |  |
Forfeiture of restricted stock awards (in shares) |  |  |  |  | (843) |  | 843 |  |  |  |
Stock option exercises, net | 281 |  |  |  |  | 281 |  |  |  |  |
Stock option exercises, net (in shares) |  |  |  |  | 22,731 |  |  |  |  |  |
Purchase of treasury stock | 366 |  |  |  |  |  | $ 366 |  |  |  |
Purchase of treasury stock (in shares) |  |  |  |  | 14,197 |  | (14,197) |  |  |  |
Preferred stock converted to common stock |  |  |  | (88) |  | 88 |  |  |  |  |
Preferred stock converted to common stock (in shares) |  |  |  |  | 6,106 |  |  |  |  |  |
Preferred dividends |  | $ (181) | $ (204) |  |  |  |  |  | $ (181) | $ (204) |
Net income | 20,133 |  |  |  |  |  |  | 20,133 |  |  |
Other comprehensive income | 434 |  |  |  |  |  |  |  |  |  | 434
Ending Balance at Jun. 30, 2017 | $ 310,467 |  |  | $ 9,658 | $ 182 | $ 198,570 | $ (1,759) | $ 103,658 |  |  | $ 158
Ending Balance (in shares) at Jun. 30, 2017 |  |  |  |  | 18,132,585 |  | 91,158 |  |  |  |

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