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
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 1,441	$ 844
Weighted Average Shares Outstanding, Basic (in shares)	7,293	7,157
Per Share Amount, Basic (in dollars per share)	$ 0.20	$ 0.12
Weighted Average Shares Outstanding, Dilutive effect of common equivalent shares (in shares)	170	210
Per Share Amount, Dilutive effect of common equivalent shares (in usd per share)	$ (0.01)	$ (0.01)
Weighted Average Shares Outstanding, Dilutive (in shares)	7,463	7,367
Per Share Amount, Dilutive (in dollars per share)	$ 0.19	$ 0.11