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Consolidated Statements Of Changes In Shareholders' Equity - USD ($)
$ in Thousands
Series A 3% Preferred Stock [Member]
Retained Earnings [Member]
Series A 3% Preferred Stock [Member]
Series B-1 8.48% Preferred Stock [Member]
Retained Earnings [Member]
Series B-1 8.48% Preferred Stock [Member]
Preferred Equity [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total
Balance at Dec. 31, 2013         $ 17,342 $ 142 $ 67,574 $ 186,137 $ (10,187) $ (6,169) $ 254,839
Comprehensive income:                      
Net income               29,355     29,355
Other comprehensive income (loss), net of tax                 1,176   1,176
Common stock issued           2 5,398       5,400
Purchases of common stock for treasury                   (194) (194)
Repurchase of Series B-1 8.48% preferred stock         (2)           (2)
Share-based compensation plans:                      
Share-based compensation             471       471
Stock options exercised             32     635 667
Restricted stock awards issued, net             (520)     520  
Cash dividends declared:                      
Preferred stock dividends per share $ (4) $ (4) $ (1,458) $ (1,458)              
Common stock dividends per share               (10,718)     (10,718)
Balance at Dec. 31, 2014         17,340 144 72,955 203,312 (9,011) (5,208) 279,532
Comprehensive income:                      
Net income               28,337     28,337
Other comprehensive income (loss), net of tax                 (2,316)   (2,316)
Purchases of common stock for treasury                   (202) (202)
Share-based compensation plans:                      
Share-based compensation             674       674
Stock options exercised             6     353 359
Restricted stock awards issued, net             (1,052)     1,052  
Excess tax benefit             79       79
Stock awards             28     82 110
Cash dividends declared:                      
Preferred stock dividends per share (4) (4) (1,458) (1,458)              
Common stock dividends per share               (11,267)     (11,267)
Balance at Dec. 31, 2015         17,340 144 72,690 218,920 (11,327) (3,923) 293,844
Comprehensive income:                      
Net income               31,931     31,931
Other comprehensive income (loss), net of tax                 (2,624)   (2,624)
Common stock issued           3 8,097       8,100
Share-based compensation plans:                      
Share-based compensation             845       845
Stock options exercised             23     941 964
Restricted stock awards issued, net             24     (24)  
Excess tax benefit             30       30
Stock awards             46     82 128
Cash dividends declared:                      
Preferred stock dividends per share $ (4) $ (4) $ (1,458) $ (1,458)              
Common stock dividends per share               (11,702)     (11,702)
Balance at Dec. 31, 2016         $ 17,340 $ 147 $ 81,755 $ 237,687 $ (13,951) $ (2,924) $ 320,054