v3.21.2

Other Receivables, Net (Details) - Schedule of other receivables - USD ($) | Jun. 30, 2021 | Jun. 30, 2020
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Schedule of other receivables [Abstract] |  |  |
Advances to customers | [1] | $ 6,025,670 | $ 10,004,893
Employee business advances |  | 1,154 | 51,334
Total |  | 6,026,824 | 10,056,227
Less: allowances for doubtful accounts |  | (6,024,266) | (10,005,193)
Other receivables, net – continuing operations |  | $ 2,558 | $ 51,034
[1] | As of June 30, 2021 and 2020, the Company entered into certain contracts with customers (state-owned entities) where the Company’s services included freight costs and cost of commodities to be shipped to customers’ designated locations. The Company prepaid the costs of commodities and recognized as advance payments on behalf of its customers. These advance payments on behalf of the customers will be repaid to the Company when either the contract terms are expired or the contracts are terminated by the Company. As aforementioned customers were negatively impacted by the pandemic and required additional time to execute existing contracts, they required additional time to pay. Due to significant uncertainty on whether the delayed contracts will be executed timely. As such, the Company had provided an allowance due to contract delay and recorded allowances of approximately $10.0 million for the year ended June 30, 2020. For the year ended June 30, 2021, the Company recovered $4,786,814 of the reserved amount.

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- Definition Advances to customers. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Amount of employee business advances. + References No definition available. + Details
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Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Amount of total other receivables. + References No definition available. + Details
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Namespace Prefix: | sino_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of allowance for credit loss on receivable, classified as other and current. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.5) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant