Earnings Per Share (Computation of Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Basic EPS, Net Income (Numerator)	$ 4,160	$ 3,544	$ 5,575	$ 7,047
Diluted EPS, Net Income (Numerator)	$ 4,160	$ 3,544	$ 5,575	$ 7,047
Basic EPS , Weighted Average Shares (Denominator)	22,304	22,228	22,352	22,185
Effect of dilutive stock awards, Weighted Average Shares (Denominator)	204	205	198	247
Diluted EPS, Weighted Average Shares (Denominator)	22,508	22,433	22,550	22,432
Basic EPS, Per Share Amount	$ 0.19	$ 0.16	$ 0.25	$ 0.32
Effect Of Dilutive Stock Awards, Per Share	(0.01)			(0.01)
Diluted EPS, Per Share Amount	$ 0.18	$ 0.16	$ 0.25	$ 0.31