Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Summary of Revenue Disaggregated by Source

The following table presents our revenue disaggregated by source.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)
Revenue Type:
Services	$	23,412,066	$	29,128,182	$	70,742,475	$	107,044,434
Product sales and other		2,508,149		2,802,368		7,802,289		8,796,532
Total revenue	$	25,920,215	$	31,930,550	$	78,544,764	$	115,840,966