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Note 9 - Investment in and Advance to Equity Investment Affiliates (Details) - Movement of Investment in and Advance to Equity Investment Affiliates (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]      
Balance $ 824,000   $ 845,000
Share of losses in equity investment affiliates (15,000) (71,000)  
Exchange translation adjustment (6,000)    
Shenzhen Mingshan [Member]
     
Schedule of Equity Method Investments [Line Items]      
Balance 461,000   466,000
Share of losses in equity investment affiliates (2,000) (26,000)  
Exchange translation adjustment (3,000)    
Zhao Shang Ke Hubei [Member]
     
Schedule of Equity Method Investments [Line Items]      
Balance 363,000   379,000
Share of losses in equity investment affiliates (13,000) (45,000)  
Exchange translation adjustment $ (3,000)