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Summary of Deferred Revenue (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 573	$ 817
Unused Virtual Point
Deferred Revenue Arrangement [Line Items]
Deferred revenue	481	700
Unamortized Virtual Items
Deferred Revenue Arrangement [Line Items]
Deferred revenue	75	95
Advances For Pre-Order Items
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 17	$ 22

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- Definition

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+ References

No definition available.

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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