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Note 3 - Summary of significant accounting policies (Detail)
12 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 19, 2012
Dec. 29, 2011
Apr. 18, 2011
Jan. 06, 2011
Jun. 24, 2010
Dec. 31, 2012
Vehicles [Member]
Dec. 31, 2012
Office Equipment [Member]
Minimum [Member]
Dec. 31, 2012
Office Equipment [Member]
Maximum [Member]
Dec. 31, 2012
Electronic Devices [Member]
Dec. 31, 2012
Minimum [Member]
CNY
Dec. 31, 2012
Maximum [Member]
Dec. 31, 2012
Point At Which No Further Losses Are Recorded In The Company's Consolidated Financial Statements [Member]
USD ($)
Noncontrolling Interest, Ownership Percentage by Parent 51.00%                          
Equity Method Investment, Ownership Percentage     20.40% 25.50% 51.00% 20.40% 51.00%         20.00% 50.00%  
Equity Method Investments (in Dollars) $ 916,000 $ 1,354,000                       $ 0
Property, Plant and Equipment, Useful Life               5 years 3 years 5 years 5 years      
Advertising Expense (in Dollars) 289,000 1,357,000                        
Research and Development Expense (in Dollars) 1,819,000 2,132,000                        
Statute Of Limitations Special Circumstances Underpayment Of Taxes Threshold (in Yuan Renminbi)                       100,000