SELECTED QUARTERLY FINANCIAL DATA (unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

Below is selected quarterly financial data for the years ended December 31, 2018 and 2017:

	Three Months Ended
	March 31,			June 30,			September 30,			December 31,
	2018			2018			2018			2018
Revenue, net	$	6,116,309		$	6,914,913		$	6,260,158		$	7,134,967
Gross profit	$	71,578		$	161,714		$	150,949		$	514,746
Loss from operations	$	(4,968,772	)	$	(7,040,512	)	$	(6,208,834	)	$	(5,800,509	)
Net income (loss)	$	1,386,488		$	(6,738,652	)	$	6,304,654		$	(8,919,401	)
Income (loss) per common share - basic	$	0.01		$	(0.05	)	$	0.05		$	(0.07	)
Income (loss) per common share - diluted	$	0.01		$	(0.05	)	$	0.04		$	(0.07	)

	Three Months Ended
	March 31, 2017			June 30, 2017			September 30, 2017			December 31, 2017
Revenue, net	$	2,231,517		$	3,897,206		$	4,530,865		$	5,940,656
Gross profit (loss)	$	(273,897	)	$	(165,055	)	$	(340,369	)	$	71,409
Loss from operations	$	(2,969,949	)	$	(3,282,525	)	$	(3,274,081	)	$	(3,773,309	)
Net loss	$	(2,621,277	)	$	(3,355,624	)	$	(3,316,634	)	$	(3,735,582	)
Loss per common share - basic and diluted	$	(0.03	)	$	(0.04	)	$	(0.03	)	$	(0.03	)