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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]          
Non-cash equity compensation $ 70 $ 31 $ 149 $ 92  
Fair value of restricted stock awards outstanding     $ 1,100   $ 1,300