XML 87 R73.htm IDEA: XBRL DOCUMENT v3.10.0.1
Debt - Contractual Maturities of Note Payable Secured by Royalty Interest (Details) - Notes Payable, Other Payables - Note payable secured by royalty interest
$ in Thousands
Jun. 30, 2018
USD ($)
Debt Instrument [Line Items]  
2018 $ 875
2019 1,750
2020 1,750
2021 1,750
2022 $ 1,750