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Note 11 - Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

										*Other postretirement*
		*Defined benefit plans*								*benefit plans*
		*Three months*								*Three months*
		*ended*								*ended*
		*September 30,*								*September 30,*
		*2023*				*2022*				*2023*				*2022*
Service cost		$	6			$	11			$	1			$	1
Interest cost			24				13				—				—
Expected return on assets			(32	)			(37	)			—				—
Amortization of prior service benefit			(2	)			(2	)			(2	)			(1	)
Amortization of actuarial loss			9				12				—				—
Net periodic benefit cost (credit)		$	5			$	(3	)		$	(1	)		$	—

										*Other postretirement*
		*Defined benefit plans*								*benefit plans*
		*Nine months*								*Nine months*
		*ended*								*ended*
		*September 30,*								*September 30,*
		*2023*				*2022*				*2023*				*2022*
Service cost		$	19			$	34			$	1			$	1
Interest cost			70				41				2				1
Expected return on assets			(95	)			(113	)			—				—
Amortization of prior service benefit			(4	)			(4	)			(4	)			(3	)
Amortization of actuarial loss			25				36				—				1
Net periodic benefit cost (credit)		$	15			$	(6	)		$	(1	)		$	—

										*Other postretirement*
		*Defined benefit plans*								*benefit plans*
		*Three months*								*Three months*
		*ended*								*ended*
		*September 30,*								*September 30,*
		*2023*				*2022*				*2023*				*2022*
Service cost		$	6			$	11			$	1			$	1
Interest cost			24				13				—				—
Expected return on assets			(32	)			(37	)			—				—
Amortization of prior service benefit			(2	)			(2	)			(2	)			(1	)
Amortization of actuarial loss			9				12				—				—
Net periodic benefit cost (credit)		$	5			$	(3	)		$	(1	)		$	—

										*Other postretirement*
		*Defined benefit plans*								*benefit plans*
		*Nine months*								*Nine months*
		*ended*								*ended*
		*September 30,*								*September 30,*
		*2023*				*2022*				*2023*				*2022*
Service cost		$	19			$	34			$	1			$	1
Interest cost			70				41				2				1
Expected return on assets			(95	)			(113	)			—				—
Amortization of prior service benefit			(4	)			(4	)			(4	)			(3	)
Amortization of actuarial loss			25				36				—				1
Net periodic benefit cost (credit)		$	15			$	(6	)		$	(1	)		$	—