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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% |

X
- Definition Percentage of net income that the Company can elect to contribute to the common welfare fund. + References No definition available. + Details
Name: | stvs_CommonWelfareFundVoluntaryContribution
Namespace Prefix: | stvs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of statutory reserve accounts that the Company is required to maintain. + References No definition available. + Details
Name: | stvs_NumberOfStatutoryReserveAccounts
Namespace Prefix: | stvs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reserve account as required by the Corporate Law of the Peoples Republic of China. + References No definition available. + Details
Name: | stvs_StatutoryEquityReserves
Namespace Prefix: | stvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of after-tax income that the Company is required to allocate to the statutory reserve. + References No definition available. + Details
Name: | stvs_StatutoryReserveAfterIncomePercentage
Namespace Prefix: | stvs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of registered capital that the statutory reserve is required to reach. + References No definition available. + Details
Name: | stvs_StatutoryReservePercentageOfRegisteredCapital
Namespace Prefix: | stvs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of the registered capital that the statutory reserve cannot be less than. + References No definition available. + Details
Name: | stvs_StatutoryReservePercentageOfRegisteredCapitalMinimum
Namespace Prefix: | stvs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration