Note 9 - Retirement Plans (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

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

	2018			2017
	(In thousands)
Change in Benefit Obligation
Benefit obligation at beginning of year	$	216,022		$	214,036
Merge the Gray Plan into the Seneca Plan		3,796			-
Service cost		8,457			8,375
Interest cost		8,125			7,633
Plan amendments		-			92
Actuarial loss (gain)		7,714			(3,201	)
Benefit payments and expenses		(7,980	)		(10,913	)
Benefit obligation at end of year	$	236,134		$	216,022
Change in Plan Assets
Fair value of plan assets at beginning of year	$	207,829		$	176,238
Merge the Gray Plan into the Seneca Plan		3,300			-
Actual gain on plan assets		6,963			34,304
Employer contributions		2,732			8,200
Benefit payments and expenses		(7,980	)		(10,913	)
Fair value of plan assets at end of year	$	212,844		$	207,829
Unfunded Status	$	(23,290	)	$	(8,193	)

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

	2018			2017
	(In thousands)
Amounts Recognized in Accumulated Other Comprehensive Pre-Tax Loss
Prior service cost	$	(707	)	$	(826	)
Net loss		(33,415	)		(17,580	)
Accumulated other comprehensive pre-tax loss	$	(34,122	)	$	(18,406	)

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, 2017	$	(11,175	)
Other comprehensive loss before reclassifications		(11,483	)
Reclassified of certain tax effects of accumulated other comprehensive loss in connection with the new Tax Cuts and Jobs Act		(2,409	)
Net current period other comprehensive loss		(13,892	)
Balance at March 31, 2018	$	(25,067	)

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2018			2017			2016
	(In thousands)
Service cost	$	8,457		$	8,375		$	10,502
Interest cost		8,125			7,633			8,902
Expected return on plan assets		(15,050	)		(12,696	)		(11,685	)
Amortization of net loss		106			2,858			3,854
Prior service cost		119			109			109
Net periodic benefit cost	$	1,757		$	6,279		$	11,682

Schedule of Assumptions Used [Table Text Block]

	2018			2017
Weighted Average Assumptions for Balance Sheet Liability at End of Year:
Discount rate - projected benefit obligation		4.14	%		4.35	%
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		4.35	%		4.34	%
Discount rate - service cost		4.58	%		4.67	%
Discount rate - interest cost		3.74	%		3.62	%
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,
	2019			2018			2017
Plan Assets
Equity securities		99	%		99	%		99	%
Debt securities		-			-			-
Real estate		-			-			-
Cash		1	%		1	%		1	%
Total		100	%		100	%		100	%

	2018		2017
	Market Value		Market Value
	(In thousands)
Assets by Industry Type
Asset Category
Cash and cash equivalents:
Money market funds	$	595	$	1,585
Total cash and cash equivalents		595		1,585
Common equity securities:
Materials		10,685		10,952
Industrials		21,738		25,383
Telecommunication services		18,120		18,060
Consumer staples		32,543		43,641
Energy		20,017		16,110
Financials		37,634		33,818
Health care		20,702		17,587
Information technology		19,945		13,887
Utilities		30,865		26,806
Total common equity securities		212,249		206,244
Total assets	$	212,844	$	207,829

Schedule of Expected Contributions [Table Text Block]

Expected Employer Contributions	$	-
Expected Employee Contributions		-

Schedule of Expected Benefit Payments [Table Text Block]

2019	$	8,568
2020		9,201
2021		9,935
2022		10,586
2023		11,304
2024-2028		66,955