Annual rent expense.

No definition available.

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

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	dtss_LeasesAndRentalExpense
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

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

- Definition

The amount of rental expenses.

+ References

No definition available.

+ Details

Name:	dtss_RentalExpenses
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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 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

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=dtss_BeijingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- 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:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=dtss_CarRentalAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions (Details)											1 Months Ended				3 Months Ended			6 Months Ended		12 Months Ended
Related Party Transactions (Details)	Jul. 02, 2022 USD ($)	Jul. 02, 2022 CNY (¥)	May 01, 2022 USD ($)	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. 30, 2020 USD ($)	Apr. 30, 2020 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 CNY (¥)	Jun. 30, 2022 USD ($)
Related Party Transactions (Details) [Line Items]
Total rent payment		¥ 18,000									$ 11,000	¥ 75,000	$ 11,000	¥ 75,000
Annual rent expense	$ 4,686	32,000	$ 35,120	¥ 235,710			$ 13,355	¥ 91,200
Rent expense																		$ 65,044	$ 15,532
Rental expense																			14,178
Total rent payment	2,636
Rental expenses	$ 2,876	¥ 20,000
Due to related parties															$ 97,280			97,280				$ 102,331
Office Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense																		13,116
Monthly rent expense							$ 2,439	¥ 15,200
Chief Executive Officer [Member]
Related Party Transactions (Details) [Line Items]
Total rent payment																				$ 24,050	¥ 163,800
Rent expense																¥ 6,438	$ 7,131
Monthly rent expense									$ (2,800)	¥ 18,000
Monthly rent payment, total									$ 33,400
Office Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense															8,320		6,366
Apartment Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Total rent payment					$ 14,690	¥ 94,500
Rent expense																		$ 16,950	$ 12,663
Car Rental Agreement [Member]
Related Party Transactions (Details) [Line Items]
Rental expense															$ 34,293		$ 7,188