SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Finance lease receivables, net (Details) - USD ($)	6 Months Ended	12 Months Ended
Sep. 30, 2020	Mar. 31, 2020
Capital Leases, Net Investment in Sales Type Leases [Abstract]
Gross minimum lease payments receivable	$ 1,674,469	$ 1,606,230
Less: Amounts representing estimated executory costs	0	0
Minimum lease payments receivable	1,674,469	1,606,230
Less: Allowance for uncollectible minimum lease payments receivable	0	0
Net minimum lease payments receivable	1,674,469	1,606,230
Less: Unearned interest	(435,430)	(412,975)
Financing lease receivables, net	1,239,039	1,193,255
Finance lease receivables, net, current portion	510,044	459,110
Finance lease receivables, net, noncurrent portion	728,995	734,145
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract]
Twelve months ending September 30, 2021	532,659
Twelve months ending September 30, 2022	675,280
Twelve months ending September 30, 2023	395,455
Twelve months ending September 30, 2024	71,075
Total	$ 1,674,469	$ 1,606,230

The amount represents Finance Lease receivable current.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount represents Finance Lease receivable noncurrent.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount represents finance lease receivable unearned interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	aihs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount represents minimum finance lease payments receivable.

+ References

No definition available.

+ Details

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Namespace Prefix:	aihs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The estimate of minimum payments on sales-type leases that are probable of not being collected as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	aihs_
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Period Type:	instant

- Definition

The amount represents net minimum finance lease payments receivable.

+ References

No definition available.

+ Details

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Namespace Prefix:	aihs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919391-209981

+ Details

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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Balance Type:	debit
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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Amount of sales-type lease initial direct cost recognized as expense at commencement date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 25
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604594&loc=SL77919096-209958

+ Details

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

- Definition

Amount of net investment in sales-type lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919379-209981

+ Details

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