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Stock Compensation (Summary Of The Status Of Stock Options Outstanding) (Details)
12 Months Ended
Dec. 31, 2019
$ / shares
shares
$2.54 to $5.24 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower limit $ 2.54
Range of Exercise Prices, upper limit $ 5.24
Shares | shares 449,989
Weighted Average Remaining Option Life 5 years 2 months 12 days
Weighted Average Exercise Price $ 3.57
$5.25 to $7.49 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower limit 5.25
Range of Exercise Prices, upper limit $ 7.49
Shares | shares 256,433
Weighted Average Remaining Option Life 3 years 3 months 18 days
Weighted Average Exercise Price $ 6.58
$7.50 to $9.74 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower limit 7.50
Range of Exercise Prices, upper limit $ 9.74
Shares | shares 0
Weighted Average Remaining Option Life 0 years
Weighted Average Exercise Price $ 0.00
$9.75 to $11.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower limit 9.75
Range of Exercise Prices, upper limit $ 11.99
Shares | shares 347,863
Weighted Average Remaining Option Life 1 year 9 months 18 days
Weighted Average Exercise Price $ 11.35
$12.00 to $14.15 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower limit 12.00
Range of Exercise Prices, upper limit $ 14.15
Shares | shares 76,187
Weighted Average Remaining Option Life 1 year 2 months 12 days
Weighted Average Exercise Price $ 12.97