CONVERTIBLE NOTES PAYABLE AND NOTES PAYABLE (Details 2)	12 Months Ended
Dec. 31, 2022 USD ($)
Notes Payable [Member]
Short-Term Debt [Line Items]
Debt Instrument, Face Amount
Debt Instrument, Face Amount	50,000
Debt Instrument, Face Amount
Notes Payable [Member] \| Notes Issued 120821 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Dec. 08, 2021
Debt Instrument, Maturity Date	Jan. 08, 2022
Debt Instrument, Face Amount
Debt Instrument, Face Amount	$ 50,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount
Notes Payable Default [Member]
Short-Term Debt [Line Items]
Debt Instrument, Face Amount	118,000
Debt Instrument, Face Amount	128,000
Debt Instrument, Face Amount	$ 118,000
Notes Payable Default [Member] \| Notes Issued 042711 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Apr. 27, 2011
Debt Instrument, Maturity Date	Apr. 27, 2012
Debt Instrument, Face Amount	$ 5,000
Debt Instrument, Face Amount	$ 5,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount	$ 5,000
Notes Payable Default [Member] \| Notes Issued 121417 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Dec. 14, 2017
Debt Instrument, Maturity Date	Dec. 14, 2018
Debt Instrument, Face Amount	$ 8,000
Debt Instrument, Face Amount	$ 18,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount	$ 8,000
Notes Payable Default [Member] \| Notes Issued 112917 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Nov. 29, 2017
Debt Instrument, Maturity Date	Nov. 29, 2019
Debt Instrument, Face Amount	$ 105,000
Debt Instrument, Face Amount	$ 105,000
Debt Instrument, Interest Rate, Stated Percentage	2.06%
Debt Instrument, Face Amount	$ 105,000
Notes Payable Related Parties Default [Member]
Short-Term Debt [Line Items]
Debt Instrument, Face Amount	18,500
Debt Instrument, Face Amount	18,500
Debt Instrument, Face Amount	$ 18,500
Notes Payable Related Parties Default [Member] \| Notes Issued 022410 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Feb. 24, 2010
Debt Instrument, Maturity Date	Feb. 24, 2011
Debt Instrument, Face Amount	$ 7,500
Debt Instrument, Face Amount	$ 7,500
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount	$ 7,500
Notes Payable Related Parties Default [Member] \| Notes Issued 100615 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Oct. 06, 2015
Debt Instrument, Maturity Date	Nov. 15, 2015
Debt Instrument, Face Amount	$ 10,000
Debt Instrument, Face Amount	$ 10,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount	$ 10,000
Notes Payable Related Parties Default [Member] \| Notes Issued 020818 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Issuance Date	Feb. 08, 2018
Debt Instrument, Maturity Date	Apr. 09, 2018
Debt Instrument, Face Amount	$ 1,000
Debt Instrument, Face Amount	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount	$ 1,000

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://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 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

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

+ References

+ Details

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

- Definition

Date the debt instrument was issued, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI https://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))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentIssuanceDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=sfrx_NotesPayableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued120821Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=sfrx_NotesPayableDefaultMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued042711Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued121417Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued112917Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=sfrx_NotesPayableRelatedPartiesDefaultMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued022410Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued100615Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sfrx_NotesIssued020818Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: