Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.20.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Loss Contingencies [Line Items]          
Operating lease remaining lease term 2 years 1 month 17 days   2 years 1 month 17 days   2 years 7 months 6 days
Lease expiration period     37 months    
Operating lease discount rate 6.50%   6.50%    
Operating lease beginning date     Mar. 01, 2014    
Operating lease ending date     Jul. 31, 2019    
Rent expense $ 20,000 $ 38,000 $ 50,000 $ 97,000  
New Office Lease [Member]          
Loss Contingencies [Line Items]          
Operating lease beginning date     Jul. 15, 2019    
Operating lease ending date     Jul. 31, 2022    
Business Law Group [Member]          
Loss Contingencies [Line Items]          
Sublease Income     $ 4,900    
Minimum [Member]          
Loss Contingencies [Line Items]          
Operating lease remaining lease term 1 year   1 year    
Maximum [Member]          
Loss Contingencies [Line Items]          
Operating lease remaining lease term 3 years   3 years