Earnings Per Share (Computations Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Line Items]
Anti-dilutive stock options	7,700	15,600
Net income	$ 7,092	$ 7,443
Net Income (Loss) Available to Common Stockholders, Basic	$ 7,092	$ 7,443
Basic EPS, Common Shares (Denominator) (in shares)	12,717,501	12,358,849
Basic EPS (in dollars per share)	$ 0.56	$ 0.60
Diluted EPS, Stock options, Common Shares (Denominator) (in shares)	5,313	7,521
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	55,831	17,387
Diluted EPS, Income (Numerator)	$ 7,092	$ 7,443
Diluted EPS, Common Shares (Denominator) (in shares)	12,778,644	12,383,757
Diluted EPS (in dollars per share)	$ 0.56	$ 0.60