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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive (Loss) Income [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 |  | $ 412,546 | $ 13,602 | $ 160,025 | $ (16,717) | $ (4,019) | $ 565,437
Reclassification of stranded tax effects (ASU 2018-02) (see Note 8) |  |  |  | 709 |  | (709) |
Cumulative effect of adopting ASU 2016-01 (see Note 8) |  |  |  | (55) |  | 55 |
Net income |  |  |  | 21,778 |  |  | 21,778
Other comprehensive income, net of tax |  |  |  |  |  | (3,974) | (3,974)
Cash dividends declared on common stock ($0.18 per share) |  |  |  | (4,838) |  |  | (4,838)
Exercise of stock options |  |  | 252 |  |  |  | 252
Restricted stock grants |  |  |  |  |  |  |
Net performance units issued (26,517 shares) |  |  | (819) |  |  |  | (819)
Stock-based compensation expense |  |  | 721 |  |  |  | 721
Balance at Jun. 30, 2018 |  | 412,546 | 13,756 | 177,619 | (16,717) | (8,647) | 578,557
Balance at Mar. 31, 2018 |  | 412,546 | 13,434 | 162,510 | (16,717) | (7,507) | 564,266
Net income |  |  |  | 17,108 |  |  | 17,527
Other comprehensive income, net of tax |  |  |  |  |  | (1,140) | (1,140)
Cash dividends declared on common stock ($0.18 per share) |  |  |  | (1,999) |  |  | (1,999)
Exercise of stock options |  |  | 50 |  |  |  | 50
Restricted stock grants |  |  |  |  |  |  |
Stock-based compensation expense |  |  | 272 |  |  |  | 272
Balance at Jun. 30, 2018 |  | 412,546 | 13,756 | 177,619 | (16,717) | (8,647) | 578,557
Balance at Dec. 31, 2018 |  | 412,546 | 15,542 | 211,345 | (16,717) | (8,789) | 613,927
Net income |  |  |  | 30,916 |  |  | 30,916
Other comprehensive income, net of tax |  |  |  |  |  | 5,908 | 5,908
Cash dividends declared on common stock ($0.18 per share) |  |  |  | (6,612) |  |  | (6,612)
Exercise of stock options |  |  | 265 |  |  |  | 265
Restricted stock grants |  |  |  |  |  |  |
Repurchase of treasury stock (240,018 shares) |  |  |  |  | (5,175) |  | (5,175)
Net performance units issued (26,517 shares) |  |  | 196 |  |  |  | 196
Stock issued (3,032,496 shares) in acquisition of Greater Hudson Bank |  | 56,025 |  |  |  |  | 56,025
Restricted stock issued (119,008 shares) in acquisition of BoeFly LLC |  |  | 2,500 |  |  |  | 2,500
Stock-based compensation expense |  |  | 1,274 |  |  |  | 1,274
Balance at Jun. 30, 2019 |  | 468,571 | 19,777 | 235,649 | (21,892) | (2,881) | 699,224
Balance at Mar. 31, 2019 |  | 468,571 | 16,513 | 219,558 | (16,967) | (5,280) | 682,395
Net income |  |  |  | 19,281 |  |  | 19,281
Other comprehensive income, net of tax |  |  |  |  |  | 2,399 | 2,399
Cash dividends declared on common stock ($0.18 per share) |  |  |  | (3,190) |  |  | (3,190)
Exercise of stock options |  |  | 122 |  |  |  | 122
Restricted stock grants |  |  |  |  |  |  |
Repurchase of treasury stock (240,018 shares) |  |  |  |  | (4,925) |  | (4,925)
Stock issued (119,008 shares) in acquisition of BoeFly LLC |  |  | 2,500 |  |  |  | 2,500
Stock-based compensation expense |  |  | 642 |  |  |  | 642
Balance at Jun. 30, 2019 |  | $ 468,571 | $ 19,777 | $ 235,649 | $ (21,892) | $ (2,881) | $ 699,224

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