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INVENTORIES (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
INVENTORIES [Abstract]      
Raw materials $ 1,362,944us-gaap_InventoryRawMaterials $ 2,084,050us-gaap_InventoryRawMaterials  
Work-in-process 5,411,360us-gaap_InventoryWorkInProcess 4,666,821us-gaap_InventoryWorkInProcess  
Finished goods 2,807,480us-gaap_InventoryFinishedGoods 3,749,385us-gaap_InventoryFinishedGoods  
Total 9,581,784us-gaap_InventoryNet 10,500,256us-gaap_InventoryNet  
Inventory write-down $ 175,568us-gaap_InventoryWriteDown $ 29,905,734us-gaap_InventoryWriteDown $ 14,821,620us-gaap_InventoryWriteDown