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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2016
Stock-Based Compensation [Abstract] |
Schedule of Weighted Average Assumptions Used for Estimating the Grant-Date Fair Value of Each Option Grant | The fair value of stock options granted during the nine months ended September 30, 2016 and 2015 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows:
|  | Nine Months Ended September 30 |
|  | 2016 |  |  | 2015 |
Expected dividend yield |  |  | 3.72 | % |  |  | 3.72 | %
Risk-free interest rate |  |  | 1.45 | % |  |  | 1.54 | %
Expected volatility |  |  | 30.77 | % |  |  | 30.77 | %
Expected term (in years) |  |  | 7.0 |  |  |  | 7.0 |
Weighted average fair value of options |  | $ | 6.80 |  |  | $ | 6.60 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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