Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets, Goodwill and Stock-based Compensation (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets, Goodwill and Stock-based Compensation (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Intangible Assets        
Impairment of intangible assets $ 5,531,383 $ 0 $ 6,525,273 $ 766,498
Goodwill        
Impairment of goodwill $ 0 $ 0 $ 83,000 $ 0
Stock-based Compensation        
Expected forfeiture rate (as a percent) 11.03% 11.66% 11.03% 11.66%
Compensation expenses $ 9,570 $ 8,423 $ 36,832 $ 16,004