XML 58 R39.htm IDEA: XBRL DOCUMENT v3.19.1
Summary of Significant Accounting Policies -Summary of Cumulative Effect of Changes Made to the Condensed Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
Assets      
Accounts receivable $ 5,948   $ 4,005
Deferred tax asset / (liability)     126
Accumulated deficit (63,018)   $ (57,664)
Accounting Standards Update 2014-09      
Assets      
Accounts receivable   $ 4,332  
Deferred tax asset / (liability)   52  
Accumulated deficit   (57,411)  
Accounting Standards Update 2014-09 | Adjustments due to ASC 606      
Assets      
Accounts receivable (20) 327  
Deferred tax asset / (liability)   (74)  
Accumulated deficit (20) $ 253  
Accounting Standards Update 2014-09 | Balances without the Adoption of Topic 606      
Assets      
Accounts receivable 5,928    
Accumulated deficit $ (63,038)