v3.21.2

MERCHANT FINANCING (Details Narrative) - USD ($)							1 Months Ended		3 Months Ended	13 Months Ended
	Jun. 04, 2021	Mar. 27, 2020	Mar. 05, 2020	Mar. 03, 2020	Jan. 24, 2020	Jan. 04, 2020	Nov. 14, 2021	Aug. 31, 2020	Sep. 30, 2021	May 22, 2021	May 31, 2021	Apr. 30, 2021	Dec. 31, 2020
Merchant financing payables									$ 407,632				$ 412,647
Merchant financing unamortized discounts									2,754				2,754
Merchant financing net									404,878				$ 409,892
Payroll Protection Loans [Member]
Debt payment terms		The remaining portion needs to be repaid over 2 years with a 6-month moratorium on payments and carry a
Debt interest rate		1.00%
Payroll Protection Loans [Member] | Subsequent Event [Member]
Loans forgiven							$ 192,900
Payroll Protection Loans [Member] | 2020 [Member]
Proceeds from related party debt										$ 294,882
Payroll Protection Loans [Member] | 2021 [Member]
Proceeds from related party debt										$ 302,602
First Round Payroll Protection Loans [Member]
Loans forgiven	$ 70,200
First and Second Round Payroll Protection Loans [Member]
Loans forgiven									$ 224,682
Small Business Administration [Member]
Proceeds from related party debt								$ 325,300
Debt interest rate								3.75%
Vox Funding [Member] | Future Receivable Purchase Agreement [Member] | Rune NYC, LLC [Member]
Proceeds from related party debt						$ 14,500
Debt payment terms						payment over 70 business days
Debt fee amount						$ 4,850
Vox Funding [Member] | First Future Receivable Purchase Agreement [Member]
Proceeds from related party debt					$ 14,500
Debt payment terms					payment over 3.5 months
Debt fee amount					$ 4,850
Vox Funding [Member] | Second Future Receivable Purchase Agreement [Member]
Proceeds from related party debt				$ 5,605
Debt payment terms				payment over 2 months
Debt fee amount				$ 1,895
Vox Funding [Member] | Verbal Agreement [Member]
Repayment on holders per week											$ 250
Reliant Funding [Member] | Third Future Receivable Purchase Agreement [Member]
Proceeds from related party debt			$ 83,000
Debt payment terms			payment over 6 months
Debt fee amount			$ 3,000
Reliant Funding [Member] | Verbal Agreement [Member]
Repayment on holders per week												$ 10

X

- Definition

Merchant financing, net of discounts.

+ References

No definition available.

+ Details

Name:	RETC_MerchantFinancingCurrent
Namespace Prefix:	RETC_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Merchant financing payables.

+ References

No definition available.

+ Details

Name:	RETC_MerchantFinancingPayables
Namespace Prefix:	RETC_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Merchant financing unamortized discounts.

+ References

No definition available.

+ Details

Name:	RETC_MerchantFinancingUnamortizedDiscounts
Namespace Prefix:	RETC_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Repayment on holders per week.

+ References

No definition available.

+ Details

Name:	RETC_RepaymentOnHoldersPerWeek
Namespace Prefix:	RETC_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

+ References

Reference 1: 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(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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

X

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ 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_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ 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(a)(3))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentPaymentTerms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=RETC_PayrollProtectionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_AwardDateAxis=RETC_TwentyTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=RETC_TwentyTwentyOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=RETC_FirstRoundPayrollProtectionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=RETC_FirstAndSecondRoundPayrollProtectionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=RETC_SmallBusinessAdministrationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

Name:	dei_LegalEntityAxis=RETC_RuneNYCLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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