Stock-Based Compensation (Summary Of Stock Option Activity) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Stock-Based Compensation [Abstract]
Shares, Outstanding at beginning of year	566,696
Shares Granted
Shares Exercised
Shares Expired
Shares Cancelled or Forfeited	(23,950)	(7,867)
Shares, Outstanding at end of year	542,746
Shares, Expected to vest	85,669
Shares, Exercisable at end of period	457,077
Weighted Average Exercise Price, Outstanding at Beginning Balance	$ 1.48
Weighted Average Exercise Price, Granted
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Expired
Weighted Average Exercise Price, Cancelled or Forfeited	2.01
Weighted Average Exercise Price, Outstanding at Ending Balance	1.46
Weighted Average Exercise Price, Expected to Vest	1.43
Weighted Average Exercise Price, Exercisable at end of period	$ 1.46
Outstanding at end of period	6 years 8 months 12 days
Expected to vest	7 years
Exercisable at end of period	6 years 7 months 6 days
Intrinsic value, Outstanding at end of year
Intrinsic value, Expected to vest
Intrinsic value, Exercisable at end of period