XML 90 R73.htm IDEA: XBRL DOCUMENT v3.19.1
Income Taxes - Schedule of Changes to Company's Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Beginning of the Year - unrecognized tax benefits $ 72 $ 0
Increase/(Decrease) - prior year tax positions (17)  
Increase/(Decrease) - prior year tax positions   44
Increase - current year tax positions 0 28
End of the Year - unrecognized tax benefits $ 55 $ 72