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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) 7,803     3,064 4,739  
Issuance of common stock 1,330 $ 1,330        
Issuance of common stock, shares   69,907        
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations 0 $ 364 (364)      
Share based payment awards under equity compensation plan 123   123      
Common stock purchased for deferred compensation obligations (650) (650)        
Common stock repurchased pursuant to publicly announced repurchase plan (1,168) $ (1,168)        
Common stock repurchased pursuant to publicly announced repurchase plan, shares   (59,420)        
Cash dividends (2,122)     (2,122)    
Ending balances at Mar. 31, 2020 215,498 $ 140,945 4,802 63,041 6,710  
Ending balances, shares at Mar. 31, 2020   7,921,291        
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 7,997,247        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Comprehensive income (loss) $ 2,616     5,398 (2,782)  
Issuance of common stock 387 $ 387        
Issuance of common stock, shares   18,482        
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations 0 $ 71 (71)      
Share based payment awards under equity compensation plan 160   160      
Common stock purchased for deferred compensation obligations (194) (194)        
Common stock repurchased pursuant to publicly announced repurchase plan (1,149) $ (1,149)        
Common stock repurchased pursuant to publicly announced repurchase plan, shares   (56,846)        
Cash dividends (2,130)     (2,130)    
Ending balances at Mar. 31, 2021 $ 218,282 $ 141,366 $ 4,272 $ 67,728 $ 4,916  
Ending balances, shares at Mar. 31, 2021 7,958,883 7,958,883        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
APIC, Share-based Payment Arrangement, Other, Increase for Cost Recognition $ 4         $ 4