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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2016
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]  
Schedule of Accounts Receivable
Accounts
 
December 31,
 
receivable
 
2015
 
2016
 
Customer A
 
$
*
 
$
1,576,400
 
Customer B
 
$
*
 
$
1,368,956
 
Customer C
 
$
2,996,042
 
$
1,294,342
 
Customer D
 
$
6,354,510
 
$
*
 
Customer F
 
$
2,315,035
 
$
*
 
Customer G
 
$
2,299,732
 
$
*
 
  
*
Represents less than 10%
Schedule of Property, Plant and Equipment, Depreciation, Estimated Lives
 
Buildings and plant
 
 
30 years
 
Machinery and equipment
 
 
15 years
 
Furniture, fixtures and equipment
 
 
3-5 years
 
Motor vehicles
 
 
6 years
 
Schedule of Share-Based Compensation Expenses
 
 
Year ended December 31,
 
 
 
2014
 
2015
 
2016
 
Selling, general and administrative expenses
 
$
1,544,078
 
$
3,323,948
 
$
2,501,957
 
Research and development expenses
 
 
12,310
 
 
—
 
 
—
 
Cost of sales
 
 
236,431
 
 
364,003
 
 
200,132
 
Total
 
$
1,792,819
 
$
3,687,951
 
$
2,702,089