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The Company and Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) Gigabit / s	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Accounting Policies [Abstract]
Speed per second of high-speed interface technology of Bandwidth Engine ICs (in giga per second) | Gigabit / s			10
Maximum specific allowance as percentage of invoice value for problematic customer balances	100.00%		100.00%
Allowance for doubtful accounts receivable	$ 0		$ 0		$ 0
Inventory reserves	100	$ 0	$ 100	$ 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			$ 3,100
Impairment of goodwill	$ 3,159		$ 3,159

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- Definition

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

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Represents the speed per second of the high-speed interface technology of Bandwidth Engine integrated circuits.

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Amount of revenue recognized that was previously reported as deferred or unearned revenue.

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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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Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

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