v3.21.2

Summary of Significant Accounting Policies (Details) - Schedule of revenues by segments - USD ($) | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Schedule of revenues by segments [Abstract] |  |
Shipping and management agency services | $ 206,845 | $ 2,105,651
Freight logistics services | 4,944,187 | 4,368,596
Container trucking services |  | 61,709
Total | $ 5,151,032 | $ 6,535,956

X
- Definition Total costs related to services rendered by an entity during the reporting period. + References No definition available. + Details
Name: | sino_ContainerTruckingServices
Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cost of freight-in, whether based on weight, negotiated freight rates and method of transportation (that is, rail, barge, truck, and so forth). + References No definition available. + Details
Name: | sino_FreightLogisticsServicesCost
Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- References No definition available. + Details
Name: | sino_ShippingAgencyServices
Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration