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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract] |
Activity of Restricted Stock Awards | The following table summarizes the activity of restricted stock awards as of December 31:
|  | Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | Number of Shares |  |  | Weighted average fair value per award |  |  | Number of Shares |  |  | Weighted average fair value per award |  |  | Number of Shares |  |  | Weighted average fair value per award |
Beginning of period |  |  | 33,390 |  |  |  | 22.77 |  |  |  | 31,890 |  |  |  | 20.38 |  |  |  | 30,670 |  |  |  | 19.05 |
Granted |  |  | 16,000 |  |  |  | 26.35 |  |  |  | 13,250 |  |  |  | 25.50 |  |  |  | 11,000 |  |  |  | 22.00 |
Vested |  |  | (10,295 | ) |  |  | 26.33 |  |  |  | (10,970 | ) |  |  | 25.39 |  |  |  | (9,160 | ) |  |  | 21.55 |
Forfeited |  |  | (100 | ) |  |  | 26.07 |  |  |  | (780 | ) |  |  | 24.97 |  |  |  | (620 | ) |  |  | 21.84 |
Nonvested, end of period |  |  | 38,995 |  |  |  | 24.92 |  |  |  | 33,390 |  |  |  | 22.77 |  |  |  | 31,890 |  |  |  | 20.38 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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