XML 51 R38.htm IDEA: XBRL DOCUMENT v3.21.1

Prepaid Expenses and Other Current Assets (Details)															1 Months Ended			3 Months Ended		9 Months Ended
	Oct. 31, 2021 USD ($)	Oct. 31, 2021 CNY (¥)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 CNY (¥)	Aug. 31, 2021 USD ($)	Aug. 31, 2021 CNY (¥)	Jul. 31, 2021 USD ($)	Jul. 31, 2021 CNY (¥)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 CNY (¥)	May 30, 2021 USD ($)	May 30, 2021 CNY (¥)	Feb. 20, 2020	Jul. 02, 2019	Apr. 23, 2021 USD ($)	Jul. 02, 2019 USD ($)	May 28, 2019 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2021 CNY (¥)	Mar. 31, 2020 USD ($)	Aug. 31, 2020 USD ($)	Aug. 31, 2020 CNY (¥)
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Research and development expense																		$ 207,774	$ 229,146	$ 537,009		$ 799,511
Technology development service agreement, description														Pursuant to the agreement, the Company appointed HW (HK) Limited to develop an eye protection technical system for a two-year period ending July 1, 2021, and thereafter maintain the system for 36 months.
Prepaid software development expenses																		$ 150,000		150,000
Cooperation agreement, description													Guozhong Times entered an Operation Cooperation Agreement with an unrelated company, Heqin (Beijing) Technology Co, Ltd. (“Heqin”) for marketing and promoting the sale of Face Recognition Payment Processing equipment and related technical support, and other products of the Company including Epidemic Prevention and Control Systems. Heqin has a sales team which used to work with Fortune 500 companies and specializes in business marketing and sales channel establishment and expansion, especially in education industry and public area. It has had successful experience of organizing multiple business matchmaking meetings with customers, distributors and retailers.
Total borrowing amount																							$ 1,410,000	¥ 10,000,000
Other receivable																				560,011	¥ 3,680,000
Interest expenses																				$ 28,250	¥ 200,000
Interest rate																		15.00%		15.00%
Prepaid goods purchased																		$ 101,252		$ 101,252
Minimum [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Profits of sale of face recognition payment, percent																				30.00%	30.00%
Maximum [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Profits of sale of face recognition payment, percent																				70.00%	70.00%
Subsequent Event [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Remaining payment															$ 200,000
SDT Trade Co., Ltd. [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Amount Payable																				$ 1,000,000
Research and development expense																				400,000
Intangible asset software development																		600,000		600,000
HW(HK) Limited [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Intangible asset software development																		400,000		400,000
Amount payable																		900,000		900,000
Research and development expenses																		$ 350,000		$ 350,000
Forecast [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Monthly loan payments	$ 12,174	¥ 80,000	$ 91,306	¥ 600,000	$ 152,176	¥ 1,000,000	$ 121,742	¥ 800,000	$ 121,742	¥ 800,000	$ 60,871	¥ 400,000
Agreement [Member] | SDT Trade Co., Ltd. [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Total payments to service agreements																	$ 1,200,000
Agreement [Member] | HW(HK) Limited [Member]
Prepaid Expenses and Other Current Assets (Details) [Line Items]
Total payments to service agreements																$ 1,200,000

X

- References

No definition available.

+ Details

Name:	dtss_AmountPayables
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Cooperation agreement, description.

+ References

No definition available.

+ Details

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

X

- Definition

Intrangible assets software development.

+ References

No definition available.

+ Details

Name:	dtss_IntrangibleAssetsSoftwareDevelopment
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount due from parties in nontrade transactions, classified as other.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	dtss_PrepaidSoftwareDevelopmentExpenses
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

It represent the information to remaining payments

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	dtss_ResearchAndDevelopmentExpenses
Namespace Prefix:	dtss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

It describe the technology development service agreement.

+ References

No definition available.

+ Details

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

X

- Definition

The value represents total paymets to service agreements.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

X

- Definition

Interest and debt related expenses associated with nonoperating financing activities of the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

+ Details

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

X

- Definition

Rate of interest on investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

+ Details

Name:	us-gaap_InvestmentInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Cash payments for and related to principal collection on loans related to operating activities.

+ 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 http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585

+ Details

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

X

- Definition

Amount of asset related to consideration paid in advance for royalties that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 05
-Paragraph 5
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (g)(5)
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6787-107765

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320

+ Details

Name:	us-gaap_PrepaidRoyalties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 730
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373

+ Details

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

X

- Definition

Percent discount applied to worker's compensation reserve liability to reduce the reserve to present value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14754-158437

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121643868&loc=d3e14931-158439

+ Details

Name:	us-gaap_WorkersCompensationDiscountPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=dtss_AgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_ServiceAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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