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Revenues From Major Product Lines (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Revenue	$ 6,645	$ 7,101	$ 11,596
MahJong and Casino Casual Games
Revenue from External Customer [Line Items]
Revenue	1,778	1,816	2,364
PC-Based Multiplayer Online Games
Revenue from External Customer [Line Items]
Revenue	1,204	1,272	1,400
Mobile Role Playing Games
Revenue from External Customer [Line Items]
Revenue	3,538	3,998	7,776
Other games and game related revenues
Revenue from External Customer [Line Items]
Revenue	$ 125	$ 15	$ 56

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No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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