RELATED PARTY TRANSACTIONS (Details 3) - Goods And Services [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | $ 11,830 | $ 11,889 | $ 4,739 |
| China Techenergy [Member] | |||
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | 11,519 | 10,842 | 3,657 |
| Shenhua Information [Member] | |||
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | 86 | 765 | 847 |
| Hollysys Machine [Member] | |||
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | 0 | 167 | 235 |
| Hollycon [Member] | |||
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | 225 | 108 | 0 |
| Beijing IPE [Member] | |||
| Related Party Transaction [Line Items] | |||
| Sales Of Goods and Services To Related Parties Amount | $ 0 | $ 7 | $ 0 |