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Deferred Compensation Plan (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]    
Deferred Compensation Arrangement with Individual, Recorded Liability $ 3,539,000us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability  
Shares, Issued 13,724us-gaap_StockIssuedDuringPeriodSharesOther 12,700us-gaap_StockIssuedDuringPeriodSharesOther