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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Retained Earnings | Unallocated ESOP Shares | Accumulated Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | --- | ---
Stockholders' Equity, Beginning Balance at Dec. 31, 2016 |  | $ 232,852 | $ 17,943 | $ 270,880 | $ 28,644 | $ (400) | $ (6,834) |  | $ (77,381)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net Income |  | 6,631 |  |  | 6,631 |  |  |  |
Other Comprehensive Income (Loss) |  | 154 |  |  |  |  | 154 | [1] |
Cash Dividends Paid | [2] | (3,374) |  |  | (3,374) |  |  |  |
Stock Options Exercised, Net |  | 388 |  | 187 |  |  |  |  | 201
Shares Issued Under the Directors' Stock Plan |  | 22 |  | 14 |  |  |  |  | 8
Shares Issued Under the Employee Stock Purchase Plan |  | 106 |  | 69 |  |  |  |  | 37
Shares Issued for Dividend Reinvestment Plans |  | 425 |  | 284 |  |  |  |  | 141
Stock-Based Compensation Expense |  | 83 |  | 83 |  |  |  |  |
Purchases of Treasury Stock |  | (1,176) |  |  |  |  |  |  | (1,176)
Stockholders' Equity, Ending Balance at Mar. 31, 2017 |  | 236,111 | 17,943 | 271,517 | 31,901 | (400) | (6,680) |  | (78,170)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Impact of Change in Accounting Policy | [1] |  |  |  |  |  | (331) |  |
Impact of Change in Accounting Policy | Accounting Standards Update 2014-09 |  | (102) |  |  | (102) |  |  |  |
Impact of Change in Accounting Policy | Accounting Standards Update 2016-01 |  |  |  |  | 331 |  | (331) |  |
Stockholders' Equity, Beginning Balance at Dec. 31, 2017 |  | 249,603 | 18,481 | 290,219 | 28,818 | (200) | (8,514) |  | (79,201)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net Income |  | 8,531 |  |  | 8,531 |  |  |  |
Other Comprehensive Income (Loss) |  | (2,440) |  |  |  |  | (2,440) | [1] |
Cash Dividends Paid |  | (3,485) |  |  | (3,485) |  |  |  |
Stock Options Exercised, Net |  | 610 |  | 307 |  |  |  |  | 303
Shares Issued Under the Employee Stock Purchase Plan |  | 116 |  | 76 |  |  |  |  | 40
Shares Issued for Dividend Reinvestment Plans |  | 431 |  | 289 |  |  |  |  | 142
Stock-Based Compensation Expense |  | 89 |  | 89 |  |  |  |  |
Purchases of Treasury Stock |  | (619) |  |  |  |  |  |  | (619)
Stockholders' Equity, Ending Balance at Mar. 31, 2018 |  | $ 252,734 | $ 18,481 | $ 290,980 | $ 34,093 | $ (200) | $ (11,285) |  | $ (79,335)
[1] | All amounts are net of tax. Amounts in parentheses indicate debits.
[2] | Cash dividends paid per share have been adjusted for the September 28, 2017 3% stock dividend.

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