XML 63 R52.htm IDEA: XBRL DOCUMENT v3.20.2
Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Jun. 16, 2017
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Common stock outstanding under the plan 165,000   140,000  
Expected dividend yield 0.00%      
Options exercised 0      
Intrinsic value of options exercised   $ 20    
Cash received from exercise of options   $ 23    
Employee service share-based compensation, nonvested units, compensation cost not yet recognized $ 17,200      
Employee service share-based compensation, nonvested units, compensation cost not yet recognized, period for recognition 1 year 6 months      
Restricted Stock Units [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Stock options vested 103,688 98,811    
Shares, forfeited 12,000      
Grant date fair value of restricted stock units forfeited $ 303      
Grant date fair value of restricted stock units vested $ 2,200 $ 1,900    
Stock Option 2007 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
New awards granted 0      
Common stock outstanding under the plan 77,500      
Stock Option 2017 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Common stock outstanding under the plan 1,368,630      
Common stock shares reserved for issuance       3,000,000
Plan effective date Jun. 16, 2017      
Minimum [Member] | Stock Option 2007 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Period of grants vested 3 years      
Minimum [Member] | Stock Option 2017 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Period of grants vested 3 years      
Maximum [Member] | Stock Option 2007 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Period of grants vested 4 years      
Period of grants expired 10 years      
Maximum [Member] | Stock Option 2017 Plan [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Period of grants expired 10 years