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Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Unearned Employee Stock Ownership Plan Shares | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2016 | $ 204,780 | $ 192 | $ 173,047 | $ 39,483 | $ (8,318) | $ 376
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 4,453 |  |  | 4,453 |  |
Other comprehensive loss, net of tax | (52) |  |  |  |  | (52)
Net exercise of stock options (192,215 shares) | (1,237) | 2 | (1,239) |  |  |
Prepayment of ESOP Share Acquisition Loan | 1,125 | (8) | (7,185) |  | 8,318 |
Repurchase and retirement of common stock (81,500 and 232,045 shares for quarters ended March 31, 2017 and 2016, respectively) | (6,567) | (4) | (6,563) |  |  |
Cash dividends declared on common stock ($0.08 and $0.06 per share for quarters ended March 31, 2017 and 2016, respectively) | (2,440) |  |  | (2,440) |  |
Ending Balance at Jun. 30, 2017 | 200,062 | 182 | 158,060 | 41,496 | 0 | 324
Beginning Balance at Dec. 31, 2017 | 197,634 | 179 | 153,811 | 43,274 | 0 | 370
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 8,189 |  |  | 8,189 |  |
Other comprehensive loss, net of tax | (91) |  |  |  |  | (91)
Nonvested stock awards-stock-based compensation expense | 6 |  | 6 |  |  |
Repurchase and retirement of common stock (81,500 and 232,045 shares for quarters ended March 31, 2017 and 2016, respectively) | (8,490) | (4) | (8,486) |  |  |
Cash dividends declared on common stock ($0.08 and $0.06 per share for quarters ended March 31, 2017 and 2016, respectively) | (3,020) |  |  | (3,020) |  |
Ending Balance at Jun. 30, 2018 | $ 194,228 | $ 175 | $ 145,331 | $ 48,443 | $ 0 | $ 279

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