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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The fair value of share-based payment awards was estimated using the Black-Scholes option pricing model with the following assumptions and weighted average fair values at the time the grants were awarded:
|  | Six Months Ended June 30, |
|  | 2014 |  | 2013 |
Weighted average fair value of grants |  |  | n/a |  |  | $ | 2.50 |
Risk-free interest rate |  |  | n/a |  |  |  | 1.86 | %
Dividend yield |  |  | n/a |  |  |  | 1.76 | %
Expected volatility |  |  | n/a |  |  |  | 23.21 | %
Expected life in months |  |  | n/a |  |  |  | 69 |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] | Activity under the stock-based compensation plans as of June 30, 2014 and changes during the sixth months ended June 30, 2014 were as follows:
|  | Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (Years) |  |  | Aggregate Intrinsic Value |
Outstanding at December 31, 2013 |  |  | 214,263 |  |  | $ | 10.59 |  |  |  |  |  |  |  |  |
Granted – options |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  | 44,478 |  |  | $ | 10.78 |  |  |  |  |  |  |  |  |
Canceled/expired |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2014 |  |  | 169,785 |  |  | $ | 10.54 |  |  |  | 5.96 |  |  | $ | 1,474,951 |
Exercisable at June 30, 2014 |  |  | 120,343 |  |  | $ | 10.05 |  |  |  | 5.01 |  |  | $ | 1,105,335 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + 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 + Details
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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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