Expense Example	Jul. 29, 2025 USD ($)
Obra Opportunistic Structured Products ETF \| Obra Opportunistic Structured Products ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 93
Expense Example, with Redemption, 3 Years	515
Expense Example, with Redemption, 5 Years	964
Expense Example, with Redemption, 10 Years	2,210
Obra High Grade Structured Products ETF \| Obra High Grade Structured Products ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	93
Expense Example, with Redemption, 3 Years	437
Expense Example, with Redemption, 5 Years	806
Expense Example, with Redemption, 10 Years	1,842
Obra Defensive High Yield ETF \| Obra Defensive High Yield ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	72
Expense Example, with Redemption, 3 Years	$ 306

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 4

Name:	oef_ExpenseExampleYear01
Namespace Prefix:	oef_
Data Type:	dtr-types:nonNegativeMonetaryItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 4

Name:	oef_ExpenseExampleYear03
Namespace Prefix:	oef_
Data Type:	dtr-types:nonNegativeMonetaryItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 4

Name:	oef_ExpenseExampleYear05
Namespace Prefix:	oef_
Data Type:	dtr-types:nonNegativeMonetaryItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 4

Name:	oef_ExpenseExampleYear10
Namespace Prefix:	oef_
Data Type:	dtr-types:nonNegativeMonetaryItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 1
-Subsection a

Name:	dei_LegalEntityAxis=ck0001484018_S000084449Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=ck0001484018_S000084450Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=ck0001484018_S000089384Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: