Significant Accounting Policies (Details 8) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounting Policies [Abstract]
Net income (loss)	$ 653	$ 396	$ 2,096	$ (370)
Basic:
Weighted-average shares of common stock outstanding and used in computing basic income (loss) per share	18,962	18,765	18,959	18,751
Basic earnings (loss) per share	$ 0.03	$ 0.02	$ 0.11	$ (0.02)
Diluted:
Weighted average shares of common stock outstanding	18,962	18,765	18,959	18,751
Add: Common equivalent shares outstanding	56	182	51	0
Shares used in computing diluted earnings (loss) per share	19,018	18,947	19,010	18,751
Diluted earnings (loss) per share	$ 0.03	$ 0.02	$ 0.11	$ (0.02)