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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Treasury Stock | Additional Paid-In Capital | Retained Earnings | Total
--- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2017 | $ 411 | $ (63,519) | $ 312,784 | $ 168,269 | $ 417,945
BALANCE (in shares) at Dec. 31, 2017 | 41,123,365 |  |  |  |
BALANCE (in shares) at Dec. 31, 2017 |  | (3,936,291) |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income |  |  |  | 16,659 | 16,659
Issuance of Stock: |  |  |  |  |
Issuance of shares for options exercised |  | $ 326 | (88) |  | 238
Issuance of shares for options exercised (in shares) |  | 19,124 |  |  |
Issuance of restricted stock & performance stock |  | $ 892 | 1,331 |  | 2,223
Issuance of restricted stock & performance stock (in shares) |  | 52,306 |  |  |
Shares received in lieu of tax withholding payment on vested restricted stock |  | $ (846) |  |  | (846)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares) |  | (19,921) |  |  |
Stock-based compensation |  |  | 1,880 |  | 1,880
Dividends |  |  |  | (2,786) | (2,786)
Share repurchase |  | $ (6,175) |  |  | (6,175)
Share repurchase (in shares) |  | (150,481) |  |  |
BALANCE at Mar. 31, 2018 | $ 411 | $ (69,322) | 315,907 | 182,142 | 429,138
BALANCE (in shares) at Mar. 31, 2018 | 41,123,365 |  |  |  |
BALANCE (in shares) at Mar. 31, 2018 |  | (4,035,263) |  |  |
BALANCE at Dec. 31, 2018 | $ 411 | $ (87,747) | 316,479 | 268,904 | $ 498,047
BALANCE (in shares) at Dec. 31, 2018 | 41,123,365 |  |  |  | 41,123,365
BALANCE (in shares) at Dec. 31, 2018 |  | (4,229,653) |  |  | 4,229,653
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income |  |  |  | 19,866 | $ 19,866
Issuance of Stock: |  |  |  |  |
Issuance of shares for options exercised |  | $ 861 | (61) |  | 800
Issuance of shares for options exercised (in shares) |  | 41,103 |  |  |
Issuance of restricted stock & performance stock |  | $ 817 | 1,189 |  | 2,006
Issuance of restricted stock & performance stock (in shares) |  | 38,539 |  |  |
Shares received in lieu of tax withholding payment on vested restricted stock |  | $ (781) |  |  | (781)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares) |  | (15,013) |  |  |
Stock-based compensation |  |  | 2,084 |  | 2,084
Dividends |  |  |  | (3,506) | (3,506)
Share repurchase |  | $ (3,321) |  |  | (3,321)
Share repurchase (in shares) |  | (67,394) |  |  |
BALANCE at Mar. 31, 2019 | $ 411 | $ (90,171) | $ 319,691 | $ 285,264 | $ 515,195
BALANCE (in shares) at Mar. 31, 2019 | 41,123,365 |  |  |  | 41,123,365
BALANCE (in shares) at Mar. 31, 2019 |  | (4,232,418) |  |  | 4,232,418

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