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

Monthly rental expense for the reporting period incurred under operating leases,

No definition available.

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

Future rental payment.

No definition available.

Name:	dtss_OperatingLeasesFutureMinimumPaymentsReceivable1
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Quarterly fees payment.

No definition available.

Name:	dtss_QuarterlyFees
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

Name:	dtss_RenewedAndExpiredDate
Namespace Prefix:	dtss_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

Represents the renewed property management contract term.

No definition available.

Name:	dtss_RenewedPropertyManagementContractTerm
Namespace Prefix:	dtss_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Rent to be deposits.

No definition available.

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

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.

No definition available.

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

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

No definition available.

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

Amount of expenses related to the managing member or general partner for management of the day-to-day business functions of the limited liability company (LLC) or limited partnership (LP).

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

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

Name:	us-gaap_DerivativeInstrumentRiskAxis=dtss_PropertyManagementContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_CurrencyAxis=dtss_RMBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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