CONDENSED BALANCE SHEETS [Parenthetical] - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	450,000,000	450,000,000
Common stock, shares issued	229,435,726	229,381,059
Common stock, shares outstanding	229,435,726	229,381,059