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Significant Accounting Policies (Stock Option Valuation Assumptions) (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Significant Accounting Policies [Abstract]    
Number of options granted 40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Weighted average exercise price $ 9.12us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice $ 7.90us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Weighted average fair value of options $ 3.82us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 3.03us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Expected life in years 6 years 8 months 9 days [1] 5 years 4 months 24 days [1]
Expected volatility 46.76%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate [2] 45.21%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate [2]
Risk-free interest rate 1.80%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate [3] 1.52%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate [3]
Dividend yield 1.33%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate [4] 1.02%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate [4]
[1] The expected life of the options was estimated based on historical employee behavior and represents the period of time that options granted are expected to be outstanding.
[2] The expected volatility of the Company’s stock price was based on the historical volatility over the period commensurate with the expected life of the options.
[3] The risk-free interest rate is the U.S. Treasury rate commensurate with the expected life of the options on the date of grant.
[4] The expected dividend yield is the projected annual yield based on the grant date stock price.