Note 12 - Subsequent Events (Tables)

9 Months Ended

Sep. 30, 2017

Notes Tables

Balance Sheet Effects of Reclassification of Warrants from Liabilities to Stockholders' Equity [Table Text Block]

	As of September 30, 2017
	Actual			Adjustments				Pro-forma
Total assets	$	28,327,243		$	—			$	28,327,243
Total liabilities		21,970,547			(16,316,054	)	(i)		5,654,493
Convertible preferred stock		—			—				—
Stockholders' equity
Common stock		14,504			—				14,504
Additional paid-in-capital		69,686,744			13,153,524		(ii)		82,840,268
Accumulated deficit		(63,344,552	)		3,162,530		(iii)		(60,182,022	)
Total stockholders' equity		6,356,696			16,316,054				22,672,750
Total liabilities, convertible preferred stock and stockholders' equity	$	28,327,243		$	—			$	28,327,243