Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.8.0.1
Subsequent Events - Additional Information (Detail) - USD ($)
9 Months Ended
Mar. 23, 2018
Mar. 15, 2018
Feb. 28, 2018
Subsequent Event [Line Items]      
Grant date fair value     $ 0.25
Subsequent Event      
Subsequent Event [Line Items]      
Warrants to purchase common shares, shares 3,027,263    
Gross cash proceeds from warrant tender offer $ 1,500,000    
Warrant tender offer fee paid $ 73,000    
Subsequent Event | Executive Officer [Member]      
Subsequent Event [Line Items]      
Shares of common stock issued   310,527  
Grant date fair value   $ 0.57  
Common stock issue tendered for payment of income taxes   159,011