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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Additional Information) (Details)
 12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
Jan. 31, 2017
Feb. 17, 2016
USD ($)
Feb. 17, 2016
CNY (¥)
Dec. 31, 2013
USD ($)
Basis of presentation              
Working capital $ 176,400,000            
Cash and cash equivalents 15,987,478 $ 14,490,011 $ 7,068,483       $ 7,831,084
Short-term bank borrowings, including current portion of long-term bank borrowings 105,980,320 123,936,995          
Capital commitments relating to purchases of property, plant and equipment $ 4,700,000            
Consecutive years in which net income and positive cash flow from operations generated 3 years            
Current Ratio 0.3            
Net Cash Provided by (Used in) Operating Activities, Continuing Operations $ 98,671,937 66,426,213 45,619,729        
Restricted cash              
Restricted cash 15,893,467 19,062,714          
Inventories              
Inventory write-down 62,422 175,568        
Prepaid land use rights              
Lease Expenses 557,162 595,716 628,052        
Impairment of long-lived assets              
Long-lived asset impairment 198,689 1,622,588        
Impairment charges included in loss from discontinued operations 200,000 1,600,000          
Shipping and handling              
Shipping and handling costs 3,147,594 2,708,962 2,054,786        
Government subsidies              
Unrestricted cash government subsidies 4,742,635 3,578,865 926,173        
Government grants related to assets 323,769 690,889 113,735        
Foreign currency translation              
Aggregate amount of cash and cash equivalents and restricted cash denominated in RMB 28,839,371 30,891,550          
Noncontrolling interest              
Noncontrolling interest 1,629,161 $ 1,302,027          
Treasury Stock              
Share repurchase program, authorized amount 5,000,000            
Number of shares repurchased | shares   2,356,900          
Purchase price of treasury stock $ 1,350,164        
Investment accounted for under cost-method              
Cost Method Investments 581,581          
Operating Leases, Future Minimum Payments Due $ 2,943,822            
Syed Fire Safety Service Co [Member]              
Investment accounted for under cost-method              
Cost Method Investment, Ownership Percentage         15.29% 15.29%  
Cost Method Investments         $ 581,581 ¥ 4,038,900  
Subsequent Event [Member]              
Basis of presentation              
Percentage Of Capacity Increase In Expansion Project       48.00%