Quarterly report pursuant to Section 13 or 15(d)

Stock Incentive Plan - Additional Information (Detail)

v3.19.2
Stock Incentive Plan - Additional Information (Detail) - USD ($)
6 Months Ended
May 14, 2019
May 08, 2019
Jun. 30, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options     $ 15,000  
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition     1 year 10 months 24 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     389,061  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period       0
Restricted Stock [Member] | Management [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   270,012    
Restricted Stock [Member] | Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 119,049      
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, number of shares authorized   8,000,000    
Number of additional shares authorized   3,000,000    
Share price     $ 2.43  
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value     $ 700,000 $ 300,000