Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	8,551,578	8,500,555
Common stock, shares outstanding (in shares)	8,551,578	8,500,555