Note 11 - Basic and Diluted Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Notes Tables

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

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Basic and dilutive numerator:
Net loss, as reported	$	(3,969,322	)	$	(4,455,232	)	$	(7,485,738	)	$	(5,835,407	)
Denominator:
Weighted-average shares outstanding		18,614,968			12,867,845			18,614,968			9,483,395
Net loss per share - basic and diluted	$	(0.21	)	$	(0.35	)	$	(0.40	)	$	(0.62	)