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Note 10 - Retirement Plans (Tables)

12 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

		2019				2018
		(In thousands)
Change in Benefit Obligation
Benefit obligation at beginning of year		$	236,134			$	216,022
Merge the Gray Plan into the Seneca Plan			-				3,796
Service cost			9,646				8,457
Interest cost			9,131				8,125
Actuarial loss (gain)			4,113				7,714
Benefit payments and expenses			(8,563	)			(7,980	)
Benefit obligation at end of year		$	250,461			$	236,134
Change in Plan Assets
Fair value of plan assets at beginning of year		$	212,844			$	207,829
Merge the Gray Plan into the Seneca Plan			-				3,300
Actual gain on plan assets			26,731				6,963
Employer contributions			2,100				2,732
Benefit payments and expenses			(8,563	)			(7,980	)
Fair value of plan assets at end of year		$	233,112			$	212,844
Unfunded Status		$	(17,349	)		$	(23,290	)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

		2019				2018
		(In thousands)
Amounts Recognized in Accumulated Other Comprehensive Pre-Tax Loss
Prior service cost		$	(587	)		$	(707	)
Net loss			(24,305	)			(33,415	)
Accumulated other comprehensive pre-tax loss		$	(24,892	)		$	(34,122	)

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

		Pension and
		post retirement plan
		adjustments, net
		of tax
		(In thousands)
Accumulated Other Comprehensive Loss
Balance at March 31, 2018		$	(25,067	)
Other comprehensive gain			6,782
Balance at March 31, 2019		$	(18,285	)

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

		2019				2018
		(In thousands)
Service cost		$	9,646			$	8,457
Interest cost			9,131				8,125
Expected return on plan assets			(15,104	)			(15,050	)
Amortization of net loss			1,597				106
Prior service cost			119				119
Net periodic benefit cost		$	5,389			$	1,757

Defined Benefit Plan, Assumptions [Table Text Block]

		2019				2018
Weighted Average Assumptions for Balance Sheet Liability at End of Year:
Discount rate - projected benefit obligation			4.14	%			4.14	%
Expected return on plan assets			7.25	%			7.25	%
Rate of compensation increase			3.00	%			3.00	%
Weighted Average Assumptions for Benefit Cost at Beginning of Year:
Discount rate - pension expense			4.15	%			4.35	%
Discount rate - service cost			4.25	%			4.58	%
Discount rate - interest cost			3.87	%			3.74	%
Expected return on plan assets			7.25	%			7.25	%
Rate of compensation increase			3.00	%			3.00	%

Schedule of Allocation of Plan Assets [Table Text Block]

		Target				Percentage of Plan
		Allocation				Assets at March 31,
		2020				2019				2018
Plan Assets
Equity securities			99	%			99	%			99	%
Debt securities			-				-				-
Real estate			-				-				-
Cash			1	%			1	%			1	%
Total			100	%			100	%			100	%

		2019				2018
		Market Value				Market Value
		(In thousands)
Assets by Industry Type
Asset Category
Cash and cash equivalents:
Money market funds		$	1,387			$	595
Total cash and cash equivalents			1,387				595
Common equity securities:
Materials			5,331				10,685
Industrials			16,080				21,738
Telecommunication services			24,370				18,120
Consumer staples			43,486				32,543
Energy			38,230				20,017
Financials			34,521				37,634
Health care			4,247				20,702
Information technology			28,750				19,945
Utilities			36,710				30,865
Total common equity securities			231,725				212,249
Total assets		$	233,112			$	212,844

Schedule of Expected Contributions [Table Text Block]

Expected Employer Contributions		$	-
Expected Employee Contributions			-

Schedule of Expected Benefit Payments [Table Text Block]

2020			$	9,345
2021				10,067
2022				10,722
2023				11,470
2024				12,206
2025-2029				71,977

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