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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Common stock amount
Additional paid-in capital
Retained earnings
Accumulated other comprehensive income (loss)
Treasury stock
Total
Balance at beginning of period at Dec. 31, 2018 $ 32,857 $ 187,653 $ 166,526 $ (11,802) $ (4,655) $ 370,579
Increase (Decrease) in Stockholders' Equity            
Net income 0 0 13,398 0 0 13,398
Other comprehensive income 0 0 0 12,679 0 12,679
Cash dividends declared 0 0 (6,524) 0 0 (6,524)
Common stock purchased 0 0 0 0 (210) (210)
Net issuance to employee stock plans, including related tax effects 0 (69) 0 0 149 80
Recognition of stock based compensation 0 560 0 0 0 560
Balance at end of period at Jun. 30, 2019 32,857 188,144 173,400 877 (4,716) 390,562
Balance at beginning of period at Dec. 31, 2018 32,857 187,653 166,526 (11,802) (4,655) 370,579
Increase (Decrease) in Stockholders' Equity            
Net income           18,413
Other comprehensive income           14,847
Balance at end of period at Sep. 30, 2019 32,857 188,283 174,994 3,045 (4,720) 394,459
Balance at beginning of period at Jun. 30, 2019 32,857 188,144 173,400 877 (4,716) 390,562
Increase (Decrease) in Stockholders' Equity            
Net income 0 0 5,015 0 0 5,015
Other comprehensive income 0 0 0 2,168 0 2,168
Cash dividends declared 0 0 (3,421) 0 0 (3,421)
Common stock purchased 0 0 0 0 (136) (136)
Net issuance to employee stock plans, including related tax effects 0 (17) 0 0 132 115
Recognition of stock based compensation 0 156 0 0 0 156
Balance at end of period at Sep. 30, 2019 32,857 188,283 174,994 3,045 (4,720) 394,459
Balance at beginning of period at Dec. 31, 2019 32,857 188,536 175,780 3,911 (4,677) 396,407
Increase (Decrease) in Stockholders' Equity            
Net income 0 0 16,202 0 0 16,202
Other comprehensive income 0 0 0 4,610 0 4,610
Cash dividends declared 0 0 (6,819) 0 0 (6,819)
Common stock purchased 0 0 0 0 (7,467) (7,467)
Net issuance to employee stock plans, including related tax effects 0 406 0 0 251 657
Recognition of stock based compensation 0 584 0 0 0 584
Balance at end of period at Jun. 30, 2020 32,857 189,526 185,163 8,521 (11,893) 404,174
Balance at beginning of period at Dec. 31, 2019 32,857 188,536 175,780 3,911 (4,677) 396,407
Increase (Decrease) in Stockholders' Equity            
Net income           24,604
Other comprehensive income           5,494
Balance at end of period at Sep. 30, 2020 32,857 189,606 190,249 9,405 (17,672) 404,445
Balance at beginning of period at Jun. 30, 2020 32,857 189,526 185,163 8,521 (11,893) 404,174
Increase (Decrease) in Stockholders' Equity            
Net income 0 0 8,402 0 0 8,402
Other comprehensive income 0 0 0 884 0 884
Cash dividends declared 0 0 (3,316) 0 0 (3,316)
Common stock purchased 0 0 0 0 (6,003) (6,003)
Net issuance to employee stock plans, including related tax effects 0 (199) 0 0 224 25
Recognition of stock based compensation 0 279 0 0 0 279
Balance at end of period at Sep. 30, 2020 $ 32,857 $ 189,606 $ 190,249 $ 9,405 $ (17,672) $ 404,445