XML 67 R52.htm IDEA: XBRL DOCUMENT v3.19.1
Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Property, Plant and Equipment [Line Items]      
Gross property and equipment $ 983 $ 906 $ 799
Accumulated depreciation and amortization (695) (653) (486)
Property, Plant and Equipment, Net 288 253 313
Property And Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Gross property and equipment 882 805 698
Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Gross property and equipment $ 101 $ 101 $ 101