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The Company and Summary of Significant Accounting Policies - Additional Information (Details)		6 Months Ended
	Aug. 28, 2019	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Accounting Policies [Abstract]
Reverse stock split	20
Maximum specific allowance as percentage of invoice value for problematic customer balances		100.00%
Allowance for doubtful accounts receivable		$ 0		$ 0
Inventory write-downs		$ 100,000	$ 0
Payment terms		The Company sells its products both directly to customers and through distributors generally under agreements with payment terms typically less than 60 days.
Deferred revenue, revenue recognized		$ 200,000

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Represents the maximum allowance for doubtful accounts provided for any problematic customer balances, expressed as a percentage of invoice value.

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Amount of allowance for credit loss on accounts receivable.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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