XML 47 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1
Extab Acquisition - Summary of Final Purchase Price Allocation Based on Estimated Fair Value (Detail) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
May 14, 2015
Business Acquisition [Line Items]      
Goodwill $ 1,034 $ 1,034  
Extab [Member]      
Business Acquisition [Line Items]      
Cash     $ 6
License agreements     3,117
Goodwill     1,034
Other current liabilities     (456)
Deferred tax liability     (1,034)
Non-controlling interest     (667)
Purchase Price     $ 2,000