Revenues (Details 1) - BRL (R$) R$ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of operating segments [line items]
Current contract assets relating to third-party software	R$ 95,871	R$ 15,102
Contract liabilities relating to SaaS	1,672	1,291
Total contract liabilities	1,672	1,291	R$ 1,847
Proprietary software as a service (SaaS)
Disclosure of operating segments [line items]
Total contract assets	95,871	15,102	2,071
Contract liabilities relating to SaaS	1,672	1,291	1,847
Third party software
Disclosure of operating segments [line items]
Current contract assets relating to third-party software	R$ 95,871	R$ 15,102	R$ 2,071

The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2022-03-24
-Paragraph 105
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_105&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2022-03-24
-Paragraph 116
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_116_a&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ContractAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer.

+ References

+ Details

Name:	ifrs-full_ContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of current contract assets. [Refer: Contract assets]

+ References

+ Details

Name:	ifrs-full_CurrentContractAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of current contract liabilities. [Refer: Contract liabilities]

+ References

+ Details

Name:	ifrs-full_CurrentContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_SegmentsAxis=stix_ProprietarySoftwareAsAServiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=stix_ThirdPartySoftwareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: