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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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]          
Balance $ 781,000   $ 781,000   $ 845,000
Share of losses in equity investment affiliates (43,000) (54,000) (58,000) (125,000)  
Exchange translation adjustment     (6,000)    
Shenzhen Mingshan [Member]
         
Schedule of Equity Method Investments [Line Items]          
Balance 461,000   461,000   466,000
Share of losses in equity investment affiliates   (9,000) (2,000) (35,000)  
Exchange translation adjustment     (3,000)    
Zhao Shang Ke Hubei [Member]
         
Schedule of Equity Method Investments [Line Items]          
Balance 320,000   320,000   379,000
Share of losses in equity investment affiliates (43,000) (45,000) (56,000) (90,000)  
Exchange translation adjustment     $ (3,000)