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Note 21 - Related Party Transactions (Details) - Revenue from Related Parties (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Related Party Transaction [Line Items]        
Revenue from Related Parties $ 182 $ 115 $ 183 $ 174
Beijing Saimeiwei Food Equipment Technology [Member]
       
Related Party Transaction [Line Items]        
Revenue from Related Parties 182 78 182 122
Beijing Fengshangyinli Technology [Member]
       
Related Party Transaction [Line Items]        
Revenue from Related Parties   4 1 6
Beijing Telijie Century Environmental Technology [Member]
       
Related Party Transaction [Line Items]        
Revenue from Related Parties   $ 33   $ 46