Statutory Reserves (Detail) (USD $)	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011	Dec. 31, 2010
Number of statutory reserve accounts	1	1
Statutory reserve, after income percentage	10.00%	10.00%
Statutory reserve, percentage of registered capital	50.00%	50.00%
Statutory reserve, percentage of registered capital minimum	25.00%	25.00%
Statutory Equity Reserves (in Dollars)	$ 6,241	$ 6,241	$ 6,241
Common welfare fund, voluntary contribution	5% to 10%	5% to 10%

Percentage of net income that the Company can elect to contribute to the common welfare fund.

No definition available.

Name:	stvs_CommonWelfareFundVoluntaryContribution
Namespace Prefix:	stvs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of statutory reserve accounts that the Company is required to maintain.

No definition available.

Name:	stvs_NumberOfStatutoryReserveAccounts
Namespace Prefix:	stvs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Reserve account as required by the Corporate Law of the Peoples Republic of China.

No definition available.

Name:	stvs_StatutoryEquityReserves
Namespace Prefix:	stvs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Percentage of after-tax income that the Company is required to allocate to the statutory reserve.

No definition available.

Name:	stvs_StatutoryReserveAfterIncomePercentage
Namespace Prefix:	stvs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of registered capital that the statutory reserve is required to reach.

No definition available.

Name:	stvs_StatutoryReservePercentageOfRegisteredCapital
Namespace Prefix:	stvs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of the registered capital that the statutory reserve cannot be less than.

No definition available.

Name:	stvs_StatutoryReservePercentageOfRegisteredCapitalMinimum
Namespace Prefix:	stvs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration