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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Common Stock [Member]
Common Stock [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Surplus [Member]
Surplus [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Treasury Stock [Member]
Treasury Stock [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income/(Loss) [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at Dec. 31, 2019 $ 503,652     $ 16,733   $ 319,375   $ (29,990)   $ 199,029     $ (1,495)  
Net income 26,192                 26,192        
Other comprehensive income (loss) 103                       103  
Restricted stock units issued       142   (142)                
Restricted stock units/awards repurchased on vesting to pay taxes (741)     (37)   (704)                
Amortization of restricted stock awards/units 6,875         6,875                
Cash dividends declared on common stock (3,780)                 (3,780)        
Common stock options exercised 230     17   213                
Issuance of shares for Employee Stock Purchase Plan 1,078     47   1,031                
Shares repurchase (6,487)             (6,487)            
Issuance of common stock for acquisition       50   (50)                
Exercise of warrants       6   (6)                
Balance at Dec. 31, 2020 527,122     16,958   326,592   (36,477)   221,441     (1,392)  
Net income 56,622                 56,622        
Other comprehensive income (loss) (10,982)                       (10,982)  
Restricted stock units issued       251   (251)                
Restricted stock units/awards repurchased on vesting to pay taxes (2,380)     (63)   (2,317)                
Amortization of restricted stock awards/units 7,055         7,055                
Cash dividends declared on common stock (3,775)                 (3,775)        
Common stock options exercised 187     14   173                
Issuance of shares for Employee Stock Purchase Plan 833     22   811                
Shares repurchase (28,627)             (28,627)            
Issuance of common stock for acquisition 333     20   313                
Exercise of warrants       18   (18)                
Balance at Dec. 31, 2021 546,388   $ 550,297 17,220 $ 17,220 332,358 $ 332,358 (65,104) $ (65,104) 274,288   $ 278,197 (12,374) $ (12,374)
Balance (ASU 2016-13 [Member]) at Dec. 31, 2021   $ 3,909                 $ 3,909      
Net income 74,246                 74,246        
Other comprehensive income (loss) (61,837)                       (61,837)  
Restricted stock units issued       290   (290)                
Restricted stock units/awards repurchased on vesting to pay taxes (2,937)     (67)   (2,870)                
Amortization of restricted stock awards/units 8,382         8,382                
Cash dividends declared on common stock (3,645)                 3,645        
Common stock options exercised 292     20   272                
Issuance of shares for Employee Stock Purchase Plan 904     20   884                
Shares repurchase (32,722)             (32,722)            
Issuance of common stock for acquisition       12   (12)                
Exercise of warrants 0     18   (18)                
Balance at Dec. 31, 2022 $ 532,980     $ 17,513   $ 338,706   $ (97,826)   $ 348,798     $ (74,211)