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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Capital in Excess of Par Value | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2014 | $ 3,813 | $ 3,895 | $ 77,755 | $ (1,969) | $ 83,494
Balance (in shares) at Dec. 31, 2014 | 38,131,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock issued for stock incentive plans, net | $ 32 | 1,953 |  |  | 1,985
Stock issued for stock incentive plans, net (in shares) | 317,000 |  |  |  |
Stock purchased and retired | $ (34) | (2,225) |  |  | (2,259)
Stock purchased and retired (in shares) | (336,000) |  |  |  |
Net income |  |  | 14,306 |  | 14,306
Pension adjustment, net of taxes |  |  |  | 125 | 125
Unrealized loss on securities, net of taxes and reclassification adjustments |  |  |  | (57) | (57)
Excess tax benefits for share-based payments |  | 256 |  |  | 256
Dividends declared |  |  | (7,638) |  | (7,638)
Balance at Dec. 31, 2015 | $ 3,811 | 3,879 | 84,423 | (1,901) | 90,212
Balance (in shares) at Dec. 31, 2015 | 38,112,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock issued for stock incentive plans, net | $ 37 | 2,511 |  |  | 2,548
Stock issued for stock incentive plans, net (in shares) | 369,000 |  |  |  |
Stock purchased and retired | $ (362) | (6,550) | (27,825) |  | (34,737)
Stock purchased and retired (in shares) | (3,626,000) |  |  |  |
Net income |  |  | 16,745 |  | 16,745
Pension adjustment, net of taxes |  |  |  | (252) | (252)
Unrealized loss on securities, net of taxes and reclassification adjustments |  |  |  | (29) | (29)
Excess tax benefits for share-based payments |  | 160 |  |  | 160
Dividends declared |  |  | (9,202) |  | (9,202)
Balance at Dec. 31, 2016 | $ 3,486 |  | 64,141 | (2,182) | $ 65,445
Balance (in shares) at Dec. 31, 2016 | 34,855,000 |  |  |  | 34,855,082
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock issued for stock incentive plans, net | $ 18 | 2,664 |  |  | $ 2,682
Stock issued for stock incentive plans, net (in shares) | 184,000 |  |  |  |
Stock purchased and retired | $ (47) | $ (2,664) | (3,810) |  | (6,521)
Stock purchased and retired (in shares) | (467,000) |  |  |  |
Net income |  |  | 19,300 |  | 19,300
Pension adjustment, net of taxes |  |  |  | 215 | 215
Unrealized loss on securities, net of taxes and reclassification adjustments |  |  |  | (13) | (13)
Dividends declared |  |  | (11,504) |  | (11,504)
Balance at Dec. 31, 2017 | $ 3,457 |  | $ 68,127 | $ (1,980) | $ 69,604
Balance (in shares) at Dec. 31, 2017 | 34,572,000 |  |  |  | 34,572,157

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