OPERATING LEASES AS LESSOR (Details) - Beijing Hollysys [Member] $ in Thousands |
Jun. 30, 2018
USD ($)
|
|---|---|
| Operating Leases Future Minimum Payments Receivable [Line Items] | |
| 2019 | $ 1,558 |
| 2020 | 1,604 |
| 2021 | 1,653 |
| 2022 | 1,702 |
| 2023 | 1,753 |
| Total minimum lease payments to be received in the next five years | $ 8,270 |