Net Income Per Share (Schedule of Net Income per Basic and Diluted Shares) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 4,798	$ 1,799	$ 9,348	$ 4,276
Weighted Average Shares Outstanding, Basic (in shares)	7,324	7,240	7,305	7,198
Per Share Amount, Basic (in dollars per share)	$ 0.66	$ 0.25	$ 1.28	$ 0.59
Weighted Average Shares Outstanding, Dilutive effect of common equivalent shares (in shares)	256	279	215	247
Per Share Amount, Dilutive effect of common equivalent shares (in dollars per share)	$ (0.03)	$ (0.01)	$ (0.04)	$ (0.02)
Weighted Average Shares Outstanding, Dilutive (in shares)	7,580	7,519	7,520	7,445
Per Share Amount, Dilutive (in dollars per share)	$ 0.63	$ 0.24	$ 1.24	$ 0.57