Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Details)

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GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization of intangible assets $ 1,677,443 $ 2,205,755 $ 2,875,543
Capitalized computer software, amortization $ 410,693 $ 397,000 $ 88,010