Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.19.3
Commitments and Contingencies - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Commitments And Contingencies [Line Items]        
Operating lease remaining lease term 2 years 10 months 13 days   2 years 10 months 13 days  
Operating lease beginning date     Mar. 01, 2014  
Operating lease ending date     Jul. 31, 2019  
Rent expense $ 50,000 $ 24,100 $ 148,000 $ 67,000
New Office Lease        
Commitments And Contingencies [Line Items]        
Operating lease beginning date     Jul. 15, 2019  
Operating lease ending date     Jul. 31, 2022  
Business Law Group [Member]        
Commitments And Contingencies [Line Items]        
Sublease Income     $ 4,900  
Minimum [Member]        
Commitments And Contingencies [Line Items]        
Operating lease remaining lease term 1 year   1 year  
Maximum [Member]        
Commitments And Contingencies [Line Items]        
Operating lease remaining lease term 3 years   3 years