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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Common Stock | Additional Paid-in Capital | Retained Earnings | Total
--- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2015 | $ 110 | $ 24,738 | $ 118,008 | $ 142,856
Beginning balance, shares at Dec. 31, 2015 | 11,027,177 |  |  |
Tax shortfall associated with stock-based compensation arrangements |  | (51) |  | (51)
Restricted stock grants, net of forfeitures | $ 1 | (1) |  |
Restricted stock grants, net of forfeitures, shares | 66,781 |  |  |
Stock-based compensation |  | 7,330 |  | 7,330
Net income |  |  | 23,084 | 23,084
Ending balance at Sep. 30, 2016 | $ 111 | 32,016 | 141,092 | 173,219
Ending balance, shares at Sep. 30, 2016 | 11,093,958 |  |  |
Beginning balance at Dec. 31, 2016 | $ 111 | 35,453 | 152,810 | 188,374
Beginning balance, shares at Dec. 31, 2016 | 11,093,489 |  |  |
Restricted stock grants, net of forfeitures | $ 1 | (1) |  |
Restricted stock grants, net of forfeitures, shares | 73,936 |  |  |
Stock-based compensation |  | 8,569 |  | 8,569
Common stock dividends |  |  | (8,561) | (8,561)
Net income |  |  | 27,107 | 27,107
Ending balance at Sep. 30, 2017 | $ 112 | $ 44,021 | $ 171,356 | $ 215,489
Ending balance, shares at Sep. 30, 2017 | 11,167,425 |  |  |

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