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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common stock amount
Additional paid-in capital
Retained earnings
Accumulated other comprehensive income (loss)
Treasury stock
Balance at beginning of period at Dec. 31, 2017 $ 354,641 $ 32,857 $ 186,702 $ 144,977 $ (4,554) $ (5,341)
Comprehensive income:            
Net income 7,812     7,812    
Other comprehensive loss (7,622)       (7,622)  
Total comprehensive income 190     7,812 (7,622)  
Cash dividends declared (2,884)     (2,884)    
Net issuance to employee stock plans, including related tax effects 15   (112)     127
Modified retrospective basis adoption of Revenue Recognition Accounting Codification Standard 606 | Accounting Standards Update 2014-09 (184)     (184)    
Reclassification of the income tax effects of the Tax Cuts and Jobs Act from accumulated other comprehensive income for adoption of ASU 2018-02 (980)     980    
Recognition of stock based compensation 379   379      
Balance at end of period at Mar. 31, 2018 352,157 32,857 186,969 150,701 (13,156) (5,214)
Balance at beginning of period at Dec. 31, 2018 370,579 32,857 187,653 166,526 (11,802) (4,655)
Comprehensive income:            
Net income 7,281     7,281    
Other comprehensive loss 6,174       6,174  
Total comprehensive income 13,455     7,281 6,174  
Cash dividends declared (3,105)     (3,105)    
Net issuance to employee stock plans, including related tax effects (169)   (173)     4
Recognition of stock based compensation 263   263      
Balance at end of period at Mar. 31, 2019 $ 381,023 $ 32,857 $ 187,743 $ 170,702 $ (5,628) $ (4,651)