Net Income (Loss) Per Share (Schedule of Net Income (Loss) per Basic and Diluted Shares) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income (loss)	$ 495	$ (173)
Weighted Average Shares Outstanding, Basic (in shares)	7,100	6,986
Per Share Amount, Basic (in dollars per share)	$ 0.07	$ (0.02)
Weighted Average Shares Outstanding, Dilutive effect of common equivalent shares (in shares)	222	0
Per Share Amount, Dilutive effect of common equivalent shares (in usd per share)	$ 0	$ 0
Weighted Average Shares Outstanding, Dilutive (in shares)	7,322	6,986
Per Share Amount, Dilutive (in dollars per share)	$ 0.07	$ (0.02)