Revenues From Major Product Lines (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Revenue	$ 2,969	$ 4,292	$ 5,585
MahJong and Casino Casual Games
Revenue from External Customer [Line Items]
Revenue	1,051	1,070	1,308
PC-Based Online Sports Games
Revenue from External Customer [Line Items]
Revenue	1,539	2,696	3,395
Mobile Role Playing Games
Revenue from External Customer [Line Items]
Revenue	338	464	801
Other games and game related revenues
Revenue from External Customer [Line Items]
Revenue	$ 41	$ 62	$ 81

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details