Annual rent expense.

No definition available.

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

- Definition

Monthly rent expense.

+ References

No definition available.

+ Details

Name:	dtss_MonthlyRentExpense
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Monthly rent total

+ References

No definition available.

+ Details

Name:	dtss_MonthlyRentTotal
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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Namespace Prefix:	dtss_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total rent payment.

+ References

No definition available.

+ Details

Name:	dtss_TotalRentPayment
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of total capital as defined by regulatory framework.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

+ Details

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

- Definition

Amount payable from related parties classified as other, due after one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.23)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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

- Definition

Amount of commissions expense incurred because the lessor of real estate obtained a lessee for a rental property through a real estate agent.

+ References

No definition available.

+ Details

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

- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_RelatedPartyTransactionAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=dtss_OfficeRentalAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=dtss_ApartmentRentalAgreementMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Related Party Transactions (Details)									1 Months Ended				3 Months Ended		12 Months Ended
Related Party Transactions (Details)	May 01, 2022 USD ($)	May 01, 2022 CNY (¥)	Oct. 01, 2021 USD ($)	Oct. 01, 2021 CNY (¥)	Sep. 01, 2021 USD ($)	Sep. 01, 2021 CNY (¥)	Jul. 02, 2021 USD ($)	Jul. 02, 2021 CNY (¥)	Apr. 30, 2021 USD ($)	Apr. 30, 2021 CNY (¥)	Apr. 20, 2020 USD ($)	Apr. 20, 2020 CNY (¥)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 CNY (¥)	Jun. 30, 2022 USD ($)	Dec. 24, 2021 USD ($)	Dec. 24, 2021 CNY (¥)
Related Party Transactions (Details) [Line Items]
Annual rent expense	$ (35,120)	¥ 235,710			$ (13,355)	¥ 91,200	$ (4,686)	¥ 32,000
Total rent payment								18,000					$ 0	$ 2,898
Rental expense														7,047
Total rent payment							(2,636)
Due to related parties													68,902				$ 102,331
Office Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense													6,678
Monthly rent expense					$ (2,439)	¥ 15,200
Chief Executive Officer [Member]
Related Party Transactions (Details) [Line Items]
Total rent payment															$ 24,050	¥ 163,800
Monthly rent expense							(2,800)	¥ 18,000
Monthly rent payment, total							$ 33,400
Capital contribution																		$ 62,802	¥ 400,000
Office Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense													8,629	6,329
Apartment Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Annual rent expense									$ (11,000)	¥ 75,000	$ (11,000)	¥ 75,000
Total rent payment			$ 14,690	¥ 94,500
Car Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense													$ 30,752	$ 8,345