Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.10.0.1
Subsequent Events - Additional Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Aug. 03, 2018
Jun. 30, 2018
Subsequent Event [Line Items]    
Shares issued   $ 3,600
Aston Capital Limited Liability Company | Amended Promissory Note    
Subsequent Event [Line Items]    
Debt instrument amount   $ 17,700
Subsequent Event | Aston Capital Limited Liability Company    
Subsequent Event [Line Items]    
Shares issued $ 1,100  
Subsequent Event | Aston Capital Limited Liability Company | Amended Promissory Note    
Subsequent Event [Line Items]    
Debt instrument amount 14,400  
Debt forgiveness $ 3,300