Other Receivables, Net (Details) - Schedule of movement of allowance for doubtful accounts - USD ($)	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Schedule of movement of allowance for doubtful accounts [Abstract]
Beginning balance
Provision for doubtful accounts	10,055,203
Less: write-off	(1,763)
Exchange rate effect	(48,247)
Ending balance	$ 10,005,193

Amount of allowance for credit loss on accounts receivable, classified as current.

No definition available.

Name:	sino_ProvisionForOtherCreitLoss
Namespace Prefix:	sino_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	sino_ScheduleOfMovementOfAllowanceForDoubtfulAccountsAbstract
Namespace Prefix:	sino_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of valuation allowance for receivables classified as other, due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

Name:	us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of effect of exchange rate changes on cash balances held in foreign currencies. Excludes cash equivalents.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 230
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906

+ Details

Name:	us-gaap_EffectOfExchangeRateOnCash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration