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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common stock | Capital in Excess of Par Value | Retained Earnings Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings | Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment | Accumulated Other Comprehensive Income (Loss) | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 3,433 |  |  | $ 73,954 |  | $ (2,175) | $ 75,212
Balance (in shares) at Dec. 31, 2018 | 34,328,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock issued for stock incentive plans, net | $ 13 | $ 2,110 |  |  |  |  | 2,123
Stock issued for stock incentive plans, net (in shares) | 129,000 |  |  |  |  |  |
Stock purchased and retired | $ (59) | (2,110) |  | (6,278) |  |  | (8,447)
Stock purchased and retired (in shares) | (587,000) |  |  |  |  |  |
Net income |  |  |  | 28,239 |  |  | 28,239
Pension adjustment, net of taxes |  |  |  |  |  | (166) | (166)
Unrealized gain on securities, net of taxes and reclassification adjustments |  |  |  |  |  | 7 | 7
Dividends declared |  |  |  | (19,756) |  |  | (19,756)
Balance at Dec. 31, 2019 | $ 3,387 |  | $ 414 | 76,573 | $ (414) | (2,748) | 77,212
Balance (in shares) at Dec. 31, 2019 | 33,870,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock issued for stock incentive plans, net | $ 17 | 3,085 |  |  |  |  | 3,102
Stock issued for stock incentive plans, net (in shares) | 173,000 |  |  |  |  |  |
Stock purchased and retired | $ (17) | (3,085) |  | 612 |  |  | (2,490)
Stock purchased and retired (in shares) | (174,000) |  |  |  |  |  |
Net income |  |  |  | 19,444 |  |  | 19,444
Pension adjustment, net of taxes |  |  |  |  |  | 801 | 801
Dividends declared |  |  |  | (13,550) |  |  | (13,550)
Balance at Dec. 31, 2020 | $ 3,387 |  |  | 83,079 |  | (1,947) | $ 84,519
Balance (in shares) at Dec. 31, 2020 | 33,869,000 |  |  |  |  |  | 33,868,624
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock issued for stock incentive plans, net | $ 18 | 2,271 |  |  |  |  | $ 2,289
Stock issued for stock incentive plans, net (in shares) | 188,000 |  |  |  |  |  |
Stock purchased and retired | $ (6) | $ (2,271) |  | 1,226 |  |  | (1,051)
Stock purchased and retired (in shares) | (64,000) |  |  |  |  |  |
Net income |  |  |  | 29,026 |  |  | 29,026
Pension adjustment, net of taxes |  |  |  |  |  | (629) | (629)
Dividends declared |  |  |  | (15,629) |  |  | (15,629)
Balance at Dec. 31, 2021 | $ 3,399 |  |  | $ 97,702 |  | $ (2,576) | $ 98,525
Balance (in shares) at Dec. 31, 2021 | 33,993,000 |  |  |  |  |  | 33,992,054

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