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3. INVENTORIES (Details) - Inventory Detail (USD $)
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Inventory Detail [Abstract]      
Raw materials $ 16,017,918 $ 10,958,796 $ 15,478,537
Work-in-process 1,081,286 660,910 1,010,923
Finished goods 69,421,166 66,657,704 64,787,021
Reserve for obsolescence or lower of cost or market (82,080) (105,740) (116,540)
Total $ 86,438,290 $ 78,171,670 $ 81,159,941