Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Stock-Based Compensation [Abstract]
Outstanding, Shares		128,750
Outstanding, Weighted Average Exercise Price		$ 12.72
Outstanding, Weighted Average Remaining Contractual Term		2 months 12 days	1 year
Outstanding, Aggregate Intrinsic Value		$ 89
Exercised, Shares		(118,750)
Exercised, Weighted Average Exercise price		$ 12.36
Exercised, Aggregate Intrinsic Value		$ 340
Outstanding, Shares		10,000	128,750
Outstanding, Weighted Average Exercise Price		$ 16.95	$ 12.72
Outstanding, Weighted Average Remaining Contractual Term		2 months 12 days	1 year
Outstanding, Aggregate Intrinsic Value			$ 89
Exercisable, Shares	[1]	10,000
Exercisable, Weighted Average Exercise Price	[1]	$ 16.95
Exercisable, Weighted Average Remaining Contractual	[1]	2 months 12 days

[1] The weighted average exercise price for options exercisable at December 31, 2019 was above the company’s stock price at December 31, 2019.