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Significant Accounting Policies (Stock Transactions - Restricted Stock Awards) (Details) - Restricted Stock [Member] - $ / shares
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares granted 30,350 34,800
Average grant date fair value $ 11.21 $ 9.27