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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Total Stockholders' Equity | Noncontrolling Interest | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 112,383 | $ 419,179 | $ (6,191) | $ (3,756) | $ 521,615 | $ 89 | $ 521,704
Balance (in shares) at Dec. 31, 2018 | 25,128,773 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Adoption of ASU | Accounting Standards Update 2017-08 |  | (1,327) |  |  | (1,327) |  | (1,327)
Net income |  | 21,682 |  |  | 21,682 |  | 21,682
Other comprehensive income, net of tax |  |  | 8,678 |  | 8,678 |  | 8,678
Cash dividends declared |  | (6,581) |  |  | (6,581) |  | (6,581)
Cashless exercise of warrants | $ 0 |  |  |  | 0 |  | 0
Cashless exercise of warrants (in shares) | 224,066 |  |  |  |  |  |
Treasury shares purchased under deferred directors' plan | $ 195 |  |  | (195) | 0 |  | 0
Treasury shares purchased under deferred directors' plan (in shares) | (4,578) |  |  |  |  |  |
Treasury shares sold and distributed under deferred directors' plan | $ (118) |  |  | 118 | 0 |  | 0
Treasury shares sold and distributed under deferred directors' plan (in shares) | 5,699 |  |  |  |  |  |
Stock activity under equity compensation plans | $ 2,089 |  |  |  | 2,089 |  | 2,089
Stock activity under equity compensation plans (in shares) | 88,867 |  |  |  |  |  |
Stock based compensation expense | $ 1,200 |  |  |  | 1,200 |  | 1,200
Balance at Mar. 31, 2019 | $ 111,571 | 432,953 | 2,487 | (3,833) | 543,178 | 89 | 543,267
Balance (in shares) at Mar. 31, 2019 | 25,442,827 |  |  |  |  |  |
Balance at Dec. 31, 2019 | $ 114,858 | 475,247 | 12,059 | (4,153) | 598,011 | 89 | $ 598,100
Balance (in shares) at Dec. 31, 2019 | 25,444,275 |  |  |  |  |  | 25,444,275
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  | 17,299 |  |  | 17,299 |  | $ 17,299
Other comprehensive income, net of tax |  |  | 10,491 |  | 10,491 |  | 10,491
Cash dividends declared |  | (7,689) |  |  | (7,689) |  | (7,689)
Treasury shares purchased under share repurchase plan |  |  |  | (10,012) | (10,012) |  | (10,012)
Treasury shares purchased under share repurchase plan (in shares) | (289,101) |  |  |  |  |  |
Treasury shares purchased under deferred directors' plan | $ 215 |  |  | (215) | 0 |  | 0
Treasury shares purchased under deferred directors' plan (in shares) | 4,449 |  |  |  |  |  |
Treasury shares sold and distributed under deferred directors' plan | $ (119) |  |  | 119 | 0 |  | 0
Treasury shares sold and distributed under deferred directors' plan (in shares) | 5,748 |  |  |  |  |  |
Stock activity under equity compensation plans | $ (2,030) |  |  |  | (2,030) |  | (2,030)
Stock activity under equity compensation plans (in shares) | 78,099 |  |  |  |  |  |
Stock based compensation expense | $ 413 |  |  |  | 413 |  | 413
Balance at Mar. 31, 2020 | $ 113,337 | $ 484,857 | $ 22,550 | $ (14,261) | $ 606,483 | $ 89 | $ 606,572
Balance (in shares) at Mar. 31, 2020 | 25,234,572 |  |  |  |  |  | 25,234,572

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