INCOME TAXES (Schedule of Income Tax Rate Reconciliation) (Details)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Effective income tax rate reconciliation [Line Items]      
PRC statutory income tax rate 25.00% 25.00% 25.00%
Cayman and HK entities not subject to income taxes 0.20% 1.20% 2.50%
Research and development bonus deduction (5.60%) (2.70%) (3.30%)
Non-deductible selling, general and administrative expenses      
Share based compensation 9.20% 6.50% 4.50%
Other non-deductible selling, general and administrative expenses 0.10% 0.10% 0.60%
Change in valuation allowance 5.00% 2.50% 3.10%
Tax holiday 0.00% 0.00%  
Others (0.10%) 0.00% 0.10%
Actual income tax expense 12.20% 7.20% 2.20%
ANTE [Member]      
Non-deductible selling, general and administrative expenses      
Preferential tax rates (0.20%) (0.70%) 0.10%
One Subsidiary [Member]      
Non-deductible selling, general and administrative expenses      
Preferential tax rates (3.00%) 0.50% 0.70%
Tax holiday (0.30%)    
Two Subsidiary [Member]      
Non-deductible selling, general and administrative expenses      
Tax holiday (18.10%) (25.20%) (31.10%)