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The Company and Summary of Significant Accounting Policies - Summary of Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net Income	$ (103)	$ 315	$ (93)	$ 663
Shares used in computing net income (loss) per share
Add: weighted-average common shares outstanding	43,171	8,171	43,115	8,151
Total shares: basic	43,171	8,171	43,115	8,151
Total shares: diluted	43,171	8,409	43,115	8,378
Net income per share:
Basic	$ 0.00	$ 0.04	$ 0.00	$ 0.08
Diluted	$ 0.00	$ 0.04	$ 0.00	$ 0.08
Stock Option [Member]
Shares used in computing net income (loss) per share
Weighted-average stock options, restricted stock and issuable on conversion of warrants		81		72
RSU's
Shares used in computing net income (loss) per share
Weighted-average stock options, restricted stock and issuable on conversion of warrants		157		155

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