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Note 8 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

		December 31,
		2022				2021
Change in benefit obligation
Projected benefit obligation at beginning of year		$	35,312			$	34,852
Service cost ⁽¹⁾			1,297				1,445
Interest cost			817				736
Actuarial gain ⁽²⁾			(11,566	)			(786	)
Benefits paid			(2,732	)			(935	)
Projected benefit obligation at end of year		$	23,128			$	35,312

Change in plan assets
Fair value of plan assets at beginning of year		$	36,187			$	32,415
Actual return on plan assets			(3,709	)			4,707
Benefits paid			(2,732	)			(935	)
Fair value of plan assets at end of year		$	29,746			$	36,187

Funded status at the end of the year		$	6,618			$	875
Amounts recognized in the Consolidated Balance Sheet
Deferred tax liabilities		$	(1,390	)		$	(184	)
Other assets			6,618				875
Total amounts recognized in the Consolidated Balance Sheet		$	5,228			$	691

Amounts recognized in accumulated other comprehensive loss, net
Net loss		$	(2,968	)		$	(8,749	)
Deferred tax asset			623				1,837
Amount recognized		$	(2,345	)		$	(6,912	)

Accrued/Prepaid benefit cost, net
Benefit obligation		$	(23,128	)		$	(35,312	)
Fair value of assets			29,746				36,187
Unrecognized net actuarial loss			2,968				8,749
Deferred tax liability			(2,013	)			(2,021	)
Prepaid benefit cost included in other assets		$	7,573			$	7,603

Components of net periodic benefit cost
Service cost ⁽¹⁾		$	1,297			$	1,445
Interest cost ⁽³⁾			817				736
Expected return on plan assets ⁽³⁾			(2,517	)			(2,220	)
Amortization of prior service cost ⁽³⁾			-				(11	)
Recognized net actuarial loss ⁽³⁾			441				833
Net periodic benefit cost		$	38			$	783

Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net gain		$	(5,781	)		$	(4,106	)
Amortization of prior service cost			-				11
Deferred income tax expense			1,214				860
Total recognized		$	(4,567	)		$	(3,235	)

Total recognized in net periodic benefit cost and other comprehensive loss		$	(5,743	)		$	(3,312	)

Weighted average assumptions at end of the year
Discount rate used for net periodic pension cost			2.50	%			2.25	%
Discount rate used for disclosure			5.00	%			2.50	%
Expected return on plan assets			7.50	%			7.50	%
Rate of compensation increase			3.00	%			3.00	%

Schedule of Allocation of Plan Assets [Table Text Block]

		Fair Value Measurements at December 31, 2022
Asset Category		Total				Level 1				Level 2				Level 3
Cash		$	415			$	415			$	-			$	-
Equity securities:
U. S. companies			15,459				15,459				-				-
International companies			770				770				-				-
Equities mutual funds ⁽¹⁾			6,090				6,090				-				-
State and political subdivisions			51				-				51				-
Corporate bonds – investment grade ⁽²⁾			6,961				-				6,961				-
Total pension plan assets		$	29,746			$	22,734			$	7,012			$	-

		Fair Value Measurements at December 31, 2021
Asset Category		Total				Level 1				Level 2				Level 3)
Cash		$	1,390			$	1,390			$	-			$	-
Equity securities:
U. S. companies			19,758				19,758				-				-
International companies			2,722				2,722				-				-
Equities mutual funds ⁽¹⁾			5,257				5,257				-				-
State and political subdivisions			57				-				57				-
Corporate bonds – investment grade ⁽²⁾			7,003				-				7,003				-
Total pension plan assets		$	36,187			$	29,127			$	7,060			$	-

Schedule of Expected Benefit Payments [Table Text Block]

2023			$	2,802
2024			$	1,494
2025			$	861
2026			$	1,877
2027			$	1,801
2028 - 2032			$	11,054