Condensed Consolidated Balance Sheet (Parentheticals) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Class of stock information
Preferred stock, par value per share (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value per share (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	93,390,172	75,760,061
Common stock, shares outstanding	93,390,172	75,760,061