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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock option activity | A summary of the combined activity of the Plans during the years then ended is presented below (dollars in thousands, except per-share amounts):
|  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
Options outstanding at January 1, 2016 |  | 240,695 |  |  | $ | 6.83 |  |  |  |  |
Options exercised |  | (35,280 | ) |  | $ | 6.55 |  |  |  |  |
Options forfeited |  | (3,200 | ) |  | $ | 8.77 |  |  |  |  |
Options outstanding at December 31, 2016 |  | 202,215 |  |  | $ | 6.87 |  |  | 3.26 |  | $ | 2,647 |
Options assumed in acquisition |  | 313,360 |  |  | $ | 11.79 |  |  |  |  |
Options exercised |  | (281,125 | ) |  | $ | 10.47 |  |  |  |  |  |
Options forfeited |  | (1,580 | ) |  | $ | 8.11 |  |  |  |  |  |
Options outstanding at December 31, 2017 |  | 232,870 |  |  | $ | 9.13 |  |  | 2.87 |  | $ | 2,574 |
Options exercised |  | (74,030 | ) |  | $ | 9.97 |  |  |  |  |  |
Options forfeited |  | (4,400 | ) |  | $ | 10.85 |  |  |  |  |  |
Options outstanding at December 31, 2018 |  | 154,440 |  |  | $ | 8.68 |  |  | 2.81 |  | $ | 1,554 |
Options vested or expected to vest at December 31, 2018 |  | 154,440 |  |  | $ | 8.68 |  |  | 2.81 |  | $ | 1,554 |
Options exercisable at December 31, 2018 |  | 154,440 |  |  | $ | 8.68 |  |  | 2.81 |  | $ | 1,554 |
Information related to the stock option plan during each year follows (in thousands):
|  | 2018 |  | 2017 |  | 2016
Intrinsic value of options exercised |  | $ | 767 |  |  | $ | 2,807 |  |  | $ | 235 |
Cash received from options exercised |  | $ | 738 |  |  | $ | 2,835 |  |  | $ | 231 |
Excess tax benefit realized for option exercises |  | $ | 142 |  |  | $ | 805 |  |  | $ | 30 |
Restricted stock activity | The following table presents the restricted common stock activity during the years presented:
|  | Shares |  | Weighted Average Grant Date Fair Value
Nonvested outstanding shares at January 1, 2016 |  | 53,028 |  |  | $ | 12.34 |
Granted |  | 54,650 |  |  | $ | 14.10 |
Vested |  | (12,438 | ) |  | $ | 12.38 |
Forfeited |  | (1,739 | ) |  | $ | 12.95 |
Nonvested outstanding shares at December 31, 2016 |  | 93,501 |  |  | $ | 13.35 |
Vested |  | (27,373 | ) |  | $ | 13.34 |
Forfeited |  | (2,360 | ) |  | $ | 14.07 |
Nonvested outstanding shares at December 31, 2017 |  | 63,768 |  |  | $ | 13.33 |
Granted |  | 22,204 |  |  | $ | 20.76 |
Vested |  | (20,733 | ) |  | $ | 13.09 |
Forfeited |  | (1,710 | ) |  | $ | 14.37 |
Nonvested outstanding shares at December 31, 2018 |  | 63,529 |  |  | $ | 15.98 |

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