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Note 7 - Postretirement and Postemployment Benefits (Tables)

12 Months Ended

Sep. 29, 2019

Notes Tables

Schedule of Health Care Cost Trend Rates [Table Text Block]

		September 29				September 30
(Percent)		2019				2018
Health care cost trend rates			8.5				9.0
Rate to which the cost trend rate is assumed to decline (the “Ultimate Trend Rate”)			4.5				4.5
Year in which the rate reaches the Ultimate Trend Rate		2027				2026

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

		One Percentage Point
(Thousands of Dollars)		Increase				Decrease
Effect on net periodic postretirement benefit			11				(10	)
Effect on postretirement benefit obligation			425				(389	)

Other Postretirement Benefits Plan [Member]

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

(Thousands of Dollars)		2019				2018				2017
Service cost for benefits earned during the year			—				—				13
Interest cost on projected benefit obligation			412				365				412
Expected return on plan assets			(1,082	)			(1,080	)			(1,056	)
Amortization of net actuarial gain			(976	)			(984	)			(987	)
Amortization of prior service benefit			(723	)			(785	)			(1,459	)
Curtailment gains			0				(2,031	)			(3,741	)
Net periodic postretirement benefit			(2,369	)			(4,515	)			(6,818	)

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

(Thousands of Dollars)		2019				2018
Benefit obligation, beginning of year			11,756				15,667
Service cost			—				—
Interest cost			412				365
Actuarial loss (gain)			1,033				(1,054	)
Benefits paid, net of premiums received			(1,507	)			(1,399	)
Curtailment			—				(1,924	)
Medicare Part D subsidies			58				101
Benefit obligation, end of year			11,752				11,756
Fair value of plan assets, beginning of year			24,647				24,626
Actual return on plan assets			2,097				2,106
Employer contributions			222				422
Benefits paid, net of premiums and Medicare Part D subsidies received			(1,449	)			(1,298	)
Benefits paid for active employees			(1,382	)			(1,209	)
Fair value of plan assets at measurement date			24,135				24,647
Funded status			12,383				12,891

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

		September 29				September 30
(Thousands of Dollars)		2019				2018
Non-current assets			12,383				12,891
Postretirement benefit obligations			—				—
Accumulated other comprehensive income (before income tax benefit)			14,818				17,917

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

		September 29				September 30
(Thousands of Dollars)		2019				2018
Unrecognized net actuarial gain			4,970				12,224
Unrecognized prior service benefit			9,848				5,693
			14,818				17,917

Defined Benefit Plan, Assumptions [Table Text Block]

		September 29				September 30
(Percent)		2019				2018
Discount rate			2.8				4.0
Expected long-term return on plan assets			4.5				4.5

(Percent)		2019				2018				2017
Discount rate - service cost			4.0				3.4				3.1
Discount rate - interest cost			3.7				2.8				2.4
Expected long-term return on plan assets			4.5				4.5				4.5

Schedule of Allocation of Plan Assets [Table Text Block]

(Percent)		Policy Allocation				Actual Allocation
						September 29				September 30
Asset Class		September 29 2019				2019				2018
Equity securities			20				18				18
Debt securities			70				68				69
Hedge fund investment			10				14				13
Cash and cash equivalents			—				—				—

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

(Thousands of Dollars)		NAV				Level 1				Level 2				Level 3
Cash and cash equivalents			—				—				—				—
Domestic equity securities			778				2,640				—				—
International equity securities			—				628				750				—
Debt securities			—				17,707				—				—
Hedge fund investment			3,587				—				—				—

(Thousands of Dollars)		NAV				Level 1				Level 2				Level 3
Cash and cash equivalents			—				242				—				—
Domestic equity securities			820				2,589				—				—
International equity securities			—				681				780				—
Debt securities			—				19,185				—				—
Hedge fund investment			3,616				—				—				—

Schedule of Expected Benefit Payments [Table Text Block]

							Less
							Medicare
			Gross				Part D				Net
(Thousands of Dollars)			Payments				Subsidy				Payments
2020				1,241				(66	)			1,175
2021				1,201				(65	)			1,136
2022				1,154				(63	)			1,091
2023				1,099				(60	)			1,039
2024				1,039				(57	)			982
2025-2029				4,185				(221	)			3964

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