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Stock-based Compensation | 12 Months Ended
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Dec. 31, 2014
Stock-based Compensation [Abstract] |
Stock-based Compensation | Note 11 Stock-based Compensation The Amended and Restated Omnibus Stock and Performance Compensation Plan (the “Omnibus Plan”) provides incentive opportunities for key employees and non-employee directors and to align the personal financial interests of such individuals with those of the Company's shareholders. The Omnibus Plan permits the issuance of up to 1,500,000 shares of the Company's common stock in the form of stock options, SARs, restricted stock, restricted stock units and performance awards. Restricted Stock Restricted shares granted prior to April 16, 2013 are amortized to expense over the three-year vesting period. Beginning on April 16, 2013, restricted shares granted to Company employees are amortized to expense over the three-year vesting period whereas restricted shares granted to members of the Board of Directors are amortized to expense over a one-year service period with the exception of those shares granted in lieu of cash payment for retainer fees which are expensed in the period earned. Changes in restricted shares outstanding for the year ended December 31, 2014 were as follows:
|  |  |  | Weighted Average |
|  |  |  | Grant Date |
| Shares |  | Fair Value |
Balance at December 31, 2013 | 58,649 |  |  | $ | 37.45
Granted | 22,629 |  |  | $ | 58.89
Vested | (30,117 | ) |  | $ | 35.41
Balance at December 31, 2014 | 51,161 |  |  | $ | 48.13
During 2013 and 2012, 30,407 and 28,370 shares, respectively, were granted with weighted average per share market values at date of grant of $42.21 in 2013 and $34.03 in 2012. The fair value of such shares, which is based on the market price on the date of grant, is amortized to expense over the three-year vesting period whereas restricted shares granted to members of the Board of Directors are amortized to expense over a one-year period. Amortization of the restricted stock bonus awards totaled $1,250,000 for 2014, $1,176,000 for 2013 and $788,000 for 2012. As of December 31, 2014, the total unrecognized compensation expense related to non-vested restricted stock awards was $1,154,000 and the related weighted average period over which it is expected to be recognized is approximately 0.55 years. The total fair value of shares vested during the years ended December 2014, 2013, and 2012 was $1,066,000, $822,000, and $788,000 respectively. SARs There were 37,213 SARs granted during the year ended December 31, 2014. The Company uses the Black-Scholes option-pricing model to determine the fair value of the SARs at the date of grant. Following are the assumptions used to estimate the $17.84 per share fair value.
| Year Ended December 31, 2014
Risk-free interest rate | 2.38 | %
Expected life | 7 years |
Expected volatility | 28.11 | %
Expected dividend yield | 1.30 | %
The risk-free interest rate is based on the zero-coupon U.S. Treasury yield for the period equal to the expected life of the SARs at the time of the grant. The expected life was derived using the historical exercise activity. The Company uses historical volatility for a period equal to the expected life of the SARs using average monthly closing market prices of the Company's stock. The expected dividend yield is determined based on the Company's current rate of annual dividends. During 2014, the Company recognized SARs expense of $792,000. As of December 31, 2014, the total unrecognized compensation expense related to SARs was $815,000, and the related weighted average period over which it is expected to be recognized is 1.03 years. Changes in SARs outstanding for the year ended December 31, 2014 were as follows:
|  | SARs |  | Weighted Average Exercise Price |
Balance at December 31, 2013 |  | 343,445 |  |  | $ | 32.01 |
Granted |  | 37,213 |  |  | $ | 61.64 |
Exercised |  | (26,703 | ) |  | $ | 26.83 |
Balance at December 31, 2014 |  | 353,955 |  |  | $ | 35.52 |
Exercisable at December 31, 2014 |  | 228,973 |  |  | $ | 29.87 |
The total intrinsic value of SARs exercised during 2014 and 2013 was $716,000 and $2,328,000, respectively. The average remaining contractual term for SARs outstanding as of December 31, 2014 was 6.77 years, and the aggregate intrinsic value was $6,277,000. The average remaining contractual term for SARs exercisable as of December 31, 2013 was 7.33 years, and the aggregate intrinsic value was $12,137,000. The total compensation cost for share-based payment arrangements was $2,042,000, $1,976,000, and $1,398,000 in 2014, 2013, and 2012, respectively.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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