Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule of Stock-based Awards Granted) (Details)

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Stock-Based Compensation (Schedule of Stock-based Awards Granted) (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock options granted during period (in shares) 22,500 52,500 52,500 192,500
2007 Stock Incentive Plan | Restricted stock awards and restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of equity other than options granted during period (in shares) 0 0 120,000 150,218