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Note 8 - Due from related parties (Detail) - Due from related parties (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Due from related parties, current $ 283 $ 324
Beijing Fengshangyinli Technology [Member]
   
Due from related parties, current 106 113
Beijing Saimeiwei Food Equipment Technology [Member]
   
Due from related parties, current 84 74
Beijing Telijie Century Environmental Technology [Member]
   
Due from related parties, current $ 93 $ 137