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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 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               21,435     21,435
Other comprehensive income, net of tax                 4,741   4,741
Issuance of common stock for acquisition           2 5,398       5,400
Purchases of common stock for treasury                   (195) (195)
Repurchase of Series B-1 8.48% preferred stock         (2)           (2)
Share-based compensation plans:                      
Share-based compensation             383       383
Stock options exercised             2     158 160
Restricted stock awards issued, net             (554)     554  
Cash dividends declared:                      
Preferred stock dividends per share $ (3) $ (3) $ (1,094) $ (1,094)             (1,097)
Common stock dividends per share               (7,906)     (7,906)
Balance at Sep. 30, 2014         17,340 144 72,803 198,569 (5,446) (5,652) 277,758
Balance at Dec. 31, 2014         17,340 144 72,955 203,312 (9,011) (5,208) 279,532
Comprehensive income:                      
Net income               21,702     21,702
Other comprehensive income, net of tax                 2,959   2,959
Purchases of common stock for treasury                   (41) (41)
Share-based compensation plans:                      
Share-based compensation             520       520
Stock options exercised             1     251 252
Restricted stock awards issued, net             (1,060)     1,060  
Stock awards             11     43 54
Cash dividends declared:                      
Preferred stock dividends per share $ (3) $ (3) $ (1,094) $ (1,094)             (1,097)
Common stock dividends per share               (8,447)     (8,447)
Balance at Sep. 30, 2015         $ 17,340 $ 144 $ 72,427 $ 215,470 $ (6,052) $ (3,895) $ 295,434