Net Income 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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income (loss)	$ 1,067	$ (72)	$ 1,634	$ 809
Weighted Average Shares Outstanding, Basic (in shares)	7,041	6,959	7,012	6,939
Per Share Amount, Basic (in dollars per share)	$ 0.15	$ (0.01)	$ 0.23	$ 0.12
Weighted Average Shares Outstanding, dilutive effect of common equivalent shares, (in shares)	258	0	164	102
Per Share Amount, Dilutive effect of common equivalent shares (in usd per share)	$ 0	$ 0	$ 0	$ (0.01)
Weighted Average Shares Outstanding, Dilutive (in shares)	7,299	6,959	7,176	7,041
Per Share Amount, Dilutive (in dollars per share)	$ 0.15	$ (0.01)	$ 0.23	$ 0.11