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Deferred Compensation Agreements and Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2017
Deferred Compensation Agreements and Stock-Based Compensation |
Schedule of units activity |
Nonvested RSUs |  | Units |  | Weighted Average Grant Date Fair Value per Unit |
Balance at December 31, 2016 |  | 149,809 |  | $ | 24.70 |
Granted |  | 10,000 |  |  | 22.90 |
Vested |  | (74,394) |  |  | 25.53 |
Balance at December 31, 2017 |  | 85,415 |  |  | 23.76 |
Schedule of units to vest for remaining restricted stock units |
|  | Number of Units
For the Years Ending December 31, |  | to Vest
2018 |  | 28,471
2019 |  | 51,552
2020 |  | 5,392
|  | 85,415

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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