Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.19.1
Subsequent Events - Additional Information (Detail) - Performance Bridge [Member] - USD ($)
$ in Thousands
 3 Months Ended
Aug. 21, 2018
Mar. 31, 2019
Subsequent Event [Line Items]    
Business acquisition, contingent earn-out $ 4,414  
Business acquisition, cash consideration $ 1,220  
Common Stock [Member]    
Subsequent Event [Line Items]    
Business acquisition, shares issued or issuable 349,072  
Scenario Forecast [Member]    
Subsequent Event [Line Items]    
Business acquisition, contingent earn-out   $ 4,414
Business acquisition, percentage of consideration paid in cash   20.00%
Business acquisition, cash consideration   $ 883
Scenario Forecast [Member] | Common Stock [Member]    
Subsequent Event [Line Items]    
Business acquisition, percentage of consideration paid in shares   80.00%
Business acquisition, shares issued or issuable   600,000