Stockholders' Equity - Additional Information (Detail) - $ / shares	1 Months Ended	3 Months Ended
	May 08, 2017	Mar. 31, 2017
Stockholders Equity [Line Items]
Warrants outstanding		509,138
Exercise price of warrants for common stock		$ 0.01
Common stock warrants exercised, Shares		152,742
Subsequent Event
Stockholders Equity [Line Items]
Common stock warrants exercised, Shares	93,776