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Interim Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Shares to be Issued for Deferred Compensation Obligations
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Additional Paid-in Capital
Beginning balances at Dec. 31, 2019 $ 210,182 $ 141,069 $ 5,043 $ 62,099 $ 1,971  
Beginning balances, shares at Dec. 31, 2019   7,910,804        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Comprehensive income (loss) 13,647     7,251 6,396  
Issuance of common stock 2,343 $ 2,343        
Issuance of common stock, shares   127,216        
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations 0 $ 454 (454)      
Share based payment awards under equity compensation plan 233   233      
Common stock purchased for deferred compensation obligations (970) (970)        
Common stock repurchased pursuant to publicly announced repurchase plan (1,195) $ (1,195)        
Common stock repurchased pursuant to publicly announced repurchase plan, shares   (61,001)        
Cash dividends (4,249)     (4,249)    
Ending balances at Jun. 30, 2020 219,991 $ 141,701 4,822 65,101 8,367  
Ending balances, shares at Jun. 30, 2020   7,977,019        
Beginning balances at Dec. 31, 2020 218,588 $ 142,247 4,183 64,460 7,698  
Beginning balances, shares at Dec. 31, 2020   7,997,247        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Comprehensive income (loss) 8,045     10,019 (1,974)  
Issuance of common stock 806 $ 806        
Issuance of common stock, shares   36,891        
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations 0 $ 71 (71)      
Share based payment awards under equity compensation plan 256   256      
Common stock purchased for deferred compensation obligations (595) (595)        
Common stock repurchased pursuant to publicly announced repurchase plan (1,860) $ (1,860)        
Common stock repurchased pursuant to publicly announced repurchase plan, shares   (87,480)        
Cash dividends (4,275)     (4,275)    
Ending balances at Jun. 30, 2021 220,990 $ 140,694 $ 4,368 $ 70,204 $ 5,724  
Ending balances, shares at Jun. 30, 2021   7,946,658        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
APIC, Share-based Payment Arrangement, Other, Increase for Cost Recognition $ 25         $ 25