• Filing Date: 2019-03-08
  • Form Type: 10-K
  • Description: Annual report
v3.10.0.1
Stock-Based Compensation (Stock Options) - Additional Information (Detail) - Stock Options [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option contractual term 10 years    
Recognized compensation expenses $ 521 $ 306 $ 0
Deferred tax benefits recognized 79 78 $ 0
Unrecognized compensation expense related to nonvested stock options $ 1,359 $ 941  
Recognition of remaining compensation expense over a weighted-average period 2 years 8 months 12 days    
Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options maximum vesting period 5 years