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Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Total
Balance at Dec. 31, 2014 $ 15,151 $ 20,500 $ 215,873 $ 141,206 $ (35,751) $ (5,605) $ 351,374
Net income       24,540     24,540
Other comprehensive income           358 358
Common dividends declared       (9,994)     (9,994)
Preferred dividends declared       (105)     (105)
Preferred stock converted to common stock (12,784) 882 11,902        
Redemption of preferred stock $ (2,367)           (2,367)
Equity-based compensation expense     110       110
Common stock options exercised     (11)   74   63
Restricted stock awards     (191)   391   200
Issuance of treasury stock to 401(k) plan     9   354   363
Purchase of treasury shares         (21,525)   (21,525)
Balance at Dec. 31, 2015   21,382 227,692 155,647 (56,457) (5,247) 343,017
Net income       25,126     25,126
Other comprehensive income           3,236 3,236
Common dividends declared       (10,396)     (10,396)
Equity-based compensation expense     209       209
Common stock options exercised     146   775   921
Restricted stock awards     32   290   322
Issuance of treasury stock to 401(k) plan     63   321   384
Purchase of treasury shares         (23,762)   (23,762)
Balance at Dec. 31, 2016   21,382 228,142 170,377 (78,833) (2,011) 339,057
Net income       21,485     21,485
Other comprehensive income           1,415 1,415
Common dividends declared       (11,563)     (11,563)
Equity-based compensation expense     430       430
Common stock options exercised     86   292   378
Restricted stock awards     (48)   408   360
Issuance of treasury stock to 401(k) plan     140   275   415
Purchase of treasury shares         (1,263)   (1,263)
Reclassification of certain tax effects       244   (244)  
Balance at Dec. 31, 2017   $ 21,382 $ 228,750 $ 180,543 $ (79,121) $ (840) $ 350,714