Condensed Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Mar. 31, 2016	Dec. 31, 2015	Jul. 24, 2015	Nov. 30, 2014
Series B Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorize (in shares)	10,000,000	10,000,000
Preferred stock, shares outstanding (in shares)	690,527	1,895,010
Preferred stock, shares authorize (in shares)			20,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000
Common stock, shares outstanding (in shares)	53,259,529	5,206,428