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		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 3,109	$ 1,633	$ 4,550	$ 2,477
Weighted Average Shares Outstanding, Basic (in shares)	7,299	7,198	7,296	7,177
Per Share Amount, Basic (in dollars per share)	$ 0.43	$ 0.23	$ 0.62	$ 0.35
Weighted Average Shares Outstanding, Dilutive effect of common equivalent shares (in shares)	218	249	194	230
Per Share Amount, Dilutive effect of common equivalent shares (in usd per share)	$ (0.02)	$ (0.01)	$ (0.01)	$ (0.02)
Weighted Average Shares Outstanding, Dilutive (in shares)	7,517	7,447	7,490	7,407
Per Share Amount, Dilutive (in dollars per share)	$ 0.41	$ 0.22	$ 0.61	$ 0.33