FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Level 3 Assets and Liabilities) (Details) - Mortgage revenue bonds - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Aggregate fair value / Balance at the beginning of the period	$ 6,847	$ 7,150
Principal payments received	(273)	(265)
Unrealized net loss included in other comprehensive loss	142	(38)
Aggregate fair value / Balance at the end of the period	6,716	6,847
States and political subdivisions
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Aggregate fair value / Balance at the beginning of the period	6,165	6,436
Principal payments received	(248)	(241)
Unrealized net loss included in other comprehensive loss	131	(30)
Aggregate fair value / Balance at the end of the period	6,048	6,165
Residential - Non-Government Agencies
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Aggregate fair value / Balance at the beginning of the period	682	714
Principal payments received	(25)	(24)
Unrealized net loss included in other comprehensive loss	11	(8)
Aggregate fair value / Balance at the end of the period	$ 668	$ 682