Note 15 - Financial Information by Quarter (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Quarterly Financial Information [Table Text Block]

2017 For Quarter Ended	December 31			September 30			June 30			March 31
Revenue	$	143,679		$	148,303		$	1,357,413		$	795,282
Operating loss	$	(1,982,366	)	$	(1,305,156	)	$	(397,739	)	$	(1,552,522	)
Net income (loss)	$	(5,899,706	)	$	(4,407,067	)	$	(1,875,446	)	$	(2,728,440	)
Income (Loss) Per Share (Basic and Diluted)	$	(0.04	)	$	(0.04	)	$	(0.02	)	$	(0.03	)

2016 For Quarter Ended	December 31			September 30			June 30			March 31
Revenue	$	923,711		$	975,328		$	1,112,467		$	1,001,628
Operating loss	$	(1,017,490	)	$	(1,153,204	)	$	(1,097,913	)	$	(1,291,713	)
Net income (loss)	$	(2,106,846	)	$	(1,810,425	)	$	(3,185,359	)	$	(537,142	)
Income (Loss) Per Share (Basic and Diluted)	$	(0.02	)	$	(0.02	)	$	(0.03	)	$	(0.01	)