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Series A Preferred Stock - Additional Information (Detail)
Apr. 11, 2014
shares
Common Stock [Member]  
Class of Stock [Line Items]  
Conversion of stock, shares issued 2,035,212
Series A Convertible Preferred Stock [Member]  
Class of Stock [Line Items]  
Preferred Stock converted, shares 1,835,212
Series A Non-Convertible Preferred Stock [Member]  
Class of Stock [Line Items]  
Preferred Stock converted, shares 200,000