Proposed Arrangement with Peraso Technologies Inc. - Additional Information (Details) $ / shares in Units, d in Thousands	9 Months Ended
Sep. 30, 2021 USD ($) d $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Exchangeable shares and common stock \| shares	1,815,445
Trading days \| d	20
Consecutive trading days \| d	30
Consecutive trading days per share \| $ / shares	$ 8.57
Percentage of economic and voting interest with current stockholders holding	61.00%
Percentage of economic and voting interest as calculated on fully-diluted basis and including earnout shares	39.00%
Termination payment obligations fee to other party \| $	$ 750,000
Payment of termination fee \| $	$ 3,500,000

Payment of terminations fee.

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Percentage of economic and voting interest, as calculated on fully diluted basis and including earnout shares.

+ References

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Percentage of economic and voting interest with current stockholders holding.

+ References

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Termination payment obligations fee to other party.

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Total number of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized.

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Per share excess of preference in liquidation over convertible debt instrument's if-converted par or stated value of share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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