Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.10.0.1
Related Party Transactions - Additional Information (Detail)
3 Months Ended 6 Months Ended
Jan. 05, 2017
USD ($)
ExecutiveOfficers
May 12, 2016
shares
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
shares
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Related Party Transaction [Line Items]                
Guaranteed borrowing capacity     $ 10,000,000     $ 10,000,000    
Common stock issued during the period, value           3,600,000    
Related party notes payable     1,000,000     $ 1,000,000   $ 1,000,000
Chief Executive Officer                
Related Party Transaction [Line Items]                
Common stock issued during the period | shares       850,000        
Chief Financial Officer                
Related Party Transaction [Line Items]                
Common stock issued during the period | shares       150,000        
Chief Executive Officer and Chief Financial Officer                
Related Party Transaction [Line Items]                
Common stock issued during the period, value       $ 3,600,000        
Aston Capital Limited Liability Company                
Related Party Transaction [Line Items]                
Interest rate of debt           9.00% 9.00%  
Related party notes payable     200,000   $ 1,500,000 $ 200,000 $ 1,500,000  
Amount due to related party     1,000,000     1,000,000   1,000,000
Number of new executives | ExecutiveOfficers 2              
Executive compensation cost $ 0              
Annual payment for underlying lease     100,000   100,000 200,000 200,000  
Aston Capital Limited Liability Company | Restricted Stock                
Related Party Transaction [Line Items]                
Number of shares authorized for grant | shares   250,000            
Stock awards vesting periods   3 years            
Aston Capital Limited Liability Company | Amended Promissory Note                
Related Party Transaction [Line Items]                
Debt instrument amount     $ 17,700,000     17,700,000    
Interest rate of debt     9.00%          
Debt instrument maturity date     Jul. 01, 2020          
Accrued interest               $ 100,000
Interest Expenses     $ 300,000   $ 200,000 $ 600,000 $ 200,000