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Short-term and long-term debt (Future minimum lease payments under capital leases) (Detail)
$ in Thousands
Jun. 30, 2018
USD ($)
Future Minimum Lease Payments Under Capital Leases [Line Items]  
-2019 $ 70
-2020 6
-2021 6
-2022 0
-2023 0
Subtotal 82
Less interest expense (3)
Total $ 79