NET INCOME (LOSS) PER SHARE (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Basic net income (loss) per share is computed by dividing net loss by the weighted-average number of common shares outstanding during the reporting period. Diluted net loss per share is computed similarly to basic loss per share, except that it includes the potential dilution that could occur if dilutive securities are exercised as of the first day of the reporting period, along with the impact of those dilutive securities on net income (loss).

		Three months ended June 30,				Six months ended June 30,
		2017		2016		2017		2016
Net income (loss)	$	1,466,509	$	(1,336,471)	$	3,638,324	$	(2,524,703)
Gain on derivative warrant liability		(3,027,000)		--		(8,159,000)		--
	$	(1,560,491)	$	(1,336,471)	$	(4,520,676)	$	(2,524,703)
Weighted average outstanding shares of common stock		19,939,875		15,384,762		19,420,651		15,157,509
Warrants -- Debt		4,942,734		--		5,099,319		--
Stock options		3,833,693		--		3,989,555		--
Other warrants		99,340		--		117,786		--
Common stock and equivalents		28,815,642		15,384,762		28,627,311		15,157,509
Net income (loss) per share
Basic	$	0.07	$	(0.09)	$	0.19	$	(0.17)
Diluted		(0.05)		(0.09)		(0.16)		(0.17)