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Employee Benefit Plans (Schedule of Stock Options, by Exercise Price Range) (Details)
12 Months Ended
Dec. 31, 2016
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 552,759
Options Outstanding: Weighted Average Remaining Contractual Life (in years) 5 years 8 months 12 days
Options Outstanding: Weighted Average Exercise Price (in usd per share) $ 7.26
Options Exercisable: Shares Exercisable | shares 366,695
Options Exercisable: Weighted Average Exercise Price (in usd per share) $ 5.76
0.00 - 4.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 96,800
Options Outstanding: Weighted Average Remaining Contractual Life (in years) 2 years 1 month 6 days
Options Outstanding: Weighted Average Exercise Price (in usd per share) $ 3.54
Options Exercisable: Shares Exercisable | shares 96,800
Options Exercisable: Weighted Average Exercise Price (in usd per share) $ 3.54
0.00 - 4.00 | Minimum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower 0.00
0.00 - 4.00 | Maximum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, upper $ 4.00
4.01 - 8.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 253,688
Options Outstanding: Weighted Average Remaining Contractual Life (in years) 4 years 8 months 12 days
Options Outstanding: Weighted Average Exercise Price (in usd per share) $ 6.24
Options Exercisable: Shares Exercisable | shares 238,653
Options Exercisable: Weighted Average Exercise Price (in usd per share) $ 6.18
4.01 - 8.00 | Minimum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower 4.01
4.01 - 8.00 | Maximum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, upper $ 8.00
8.01 - 12.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 172,771
Options Outstanding: Weighted Average Remaining Contractual Life (in years) 8 years 6 months
Options Outstanding: Weighted Average Exercise Price (in usd per share) $ 9.60
Options Exercisable: Shares Exercisable | shares 31,242
Options Exercisable: Weighted Average Exercise Price (in usd per share) $ 9.37
8.01 - 12.00 | Minimum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower 8.01
8.01 - 12.00 | Maximum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, upper $ 12.00
12.01 - 16.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 29,500
Options Outstanding: Weighted Average Remaining Contractual Life (in years) 10 years
Options Outstanding: Weighted Average Exercise Price (in usd per share) $ 14.60
Options Exercisable: Shares Exercisable | shares 0
Options Exercisable: Weighted Average Exercise Price (in usd per share) $ 0.00
12.01 - 16.00 | Minimum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower 12.01
12.01 - 16.00 | Maximum  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, upper $ 16.00