Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2016	Nov. 30, 2016	Apr. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Condensed Consolidated Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.0001				$ 0.0001
Preferred stock, shares authorized	10,000,000				10,000,000
Preferred stock, shares issued	0				0
Preferred stock, shares outstanding	0				0
Common stock, par value (in dollars per share)	$ 0.0001				$ 0.0001
Common stock, shares authorized	100,000,000				100,000,000
Common stock, shares issued	53,621,679	1,750,000	1,130,198	4,404,658	40,279,783
Common stock, shares outstanding	53,621,679				40,279,783