v3.21.2

Other Long-Term Assets - Deposits, Net (Details) - 12 months ended Jun. 30, 2021 ¥ in Millions, $ in Millions | USD ($) | CNY (¥)
--- | --- | ---
Other Longterm Assets Deposits [Abstract] |  |
Deposits are refundable amount | $ 3.1 | ¥ 20
Allowance deposit with boasteel | $ 3.1 |

X
- Definition Allowance deposit with BoaSteel. + References No definition available. + Details
Name: | sino_AllowanceDepositWithBoaSteel
Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deposits are refundable amount. + References No definition available. + Details
Name: | sino_DepositsAreRefundableAmount
Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | sino_OtherLongtermAssetsDepositsAbstract
Namespace Prefix: | sino_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration