Net Income Per Share (Schedule of Net Income per Basic and Diluted Shares) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ 1,799	$ (353)	$ 4,276	$ 606
Weighted Average Shares Outstanding, Basic (in shares)	7,240	7,117	7,198	7,108
Per Share Amount, Basic (in dollars per share)	$ 0.25	$ (0.05)	$ 0.59	$ 0.09
Weighted Average Shares Outstanding, Dilutive effect of common equivalent shares (in shares)	279	0	247	137
Per Share Amount, Dilutive effect of common equivalent shares (in usd per share)	$ (0.01)	$ 0	$ (0.02)	$ (0.01)
Weighted Average Shares Outstanding, Dilutive (in shares)	7,519	7,117	7,445	7,245
Per Share Amount, Dilutive (in dollars per share)	$ 0.24	$ (0.05)	$ 0.57	$ 0.08