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Stock-Based Compensation (Schedule Of Stock Option Activity) (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Stock-Based Compensation [Abstract]    
Outstanding, Shares | shares 148,750  
Outstanding, Weighted Average Exercise Price | $ / shares $ 12.36  
Outstanding, Weighted Average Remaining Contractual Term 2 years 7 months 6 days 2 years 9 months 18 days
Outstanding, Aggregate Intrinsic Value | $ $ 2,305  
Granted, Shares | shares  
Granted, Weighted Average Exercise price | $ / shares  
Exercised, Shares | shares (5,000)  
Exercised, Weighted Average Exercise price | $ / shares $ 10.00  
Exercised, Aggregate Intrinsic Value | $ $ 78  
Forfeited, Shares | shares  
Forfeited, Weighted Average Exercise Price | $ / shares  
Expired, Shares | shares  
Expired, Weighted Average Exercise Price | $ / shares  
Outstanding, Shares | shares 143,750 148,750
Outstanding, Weighted Average Exercise Price | $ / shares $ 12.44 $ 12.36
Outstanding, Weighted Average Remaining Contractual Term 2 years 7 months 6 days 2 years 9 months 18 days
Outstanding, Aggregate Intrinsic Value | $ $ 1,770 $ 2,305
Exercisable, Shares | shares [1] 143,750  
Exercisable, Weighted Average Exercise Price | $ / shares [1] $ 12.44  
Exercisable, Weighted Average Remaining Contractual [1] 2 years 7 months 6 days  
Exercisable, Aggregate Intrinsic Value | $ [1] $ 1,770  
In-the-money options, shares | shares 143,750  
In-the-money options, weighted-average exercise price | $ / shares 12.44  
[1] SharesWeighted-Average Exercise PriceWeighted-Average Remaining Contractual Term (in years)Aggregate Intrinsic Value (in thousands)Outstanding at December 31, 2016 148,750$12.362.8$ 2,305Granted - -- -Exercised (5,000) 10.00- 78Forfeited - -- -Expired - -- -Outstanding at March 31, 2017 143,750$12.442.6$ 1,770Exercisable at March 31, 2017 (1) 143,750$12.442.6$ 1,770Includes in-the-money options totaling 143,750 shares at a weighted-average exercise price of $12.44.