BORROWINGS - Narrative (Details)			12 Months Ended
	Jan. 02, 2026	Oct. 02, 2025 USD ($)	Dec. 31, 2025 USD ($) fund	Dec. 31, 2024 USD ($)
BORROWINGS
Number of unsecured federal funds lines of credit | fund			2
Amount outstanding			$ 0	$ 0
Interest expenses			2,400,000	2,700,000
Subordinated Notes
BORROWINGS
Carrying value			$ 8,000,000.0
PPPLF
BORROWINGS
Interest bearing rate (as a percent)			0.35%
Face amount			$ 500,000	2,000,000.0
PPPLF | Minimum
BORROWINGS
Debt term (in years)			2 years
PPPLF | Maximum
BORROWINGS
Debt term (in years)			5 years
Federal Funds Lines of Credit One
BORROWINGS
Maximum borrowing capacity			$ 10,000,000.0
Federal Funds Lines of Credit Two
BORROWINGS
Maximum borrowing capacity			19,000,000.0
FHLB Advance
BORROWINGS
Debt term (in years)		3 months
FHLB borrowings – floating rate		$ 50,000,000.0
Basis points		0.14%
FHLB Advance | Subsequent event
BORROWINGS
Debt term (in years)	3 months
FHLB
BORROWINGS
Amount of collateral pledged			1,450,000,000	$ 1,300,000,000
Additional borrowings from FHLB			$ 623,400,000