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MAINLAND CHINA CONTRIBUTION PLAN AND PROFIT APPROPRIATION (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
MAINLAND CHINA CONTRIBUTION PLAN AND PROFIT APPROPRIATION [Abstract]      
Defined contribution plan expenses $ 4,087,334 $ 3,130,308 $ 3,142,213
Aggregate balance of statutory common reserves 17,720,748 $ 20,190,729 $ 16,803,191
Restrictions of statutory reserves $ 213,794,097