CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parentheticals) - shares	Jun. 30, 2025	Jun. 30, 2024
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
Number of ESOP shares purchased	646	646

The shares purchased under employee stock ownership plan.

No definition available.

Name:	snnf_EmployeeStockOwnershipPlanEsopNumberOfSharesPurchased
Namespace Prefix:	snnf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant