Income Tax (tables)

12 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

7. Income Taxes
The Company files a consolidated federal and various state income tax returns. The provision for income taxes is as follows:
		2014		2013		2012
		(In thousands)
Current:
Federal	$	7,238	$	21,356	$	4,193
State		123		3,629		704
		7,361		24,985		4,897
Deferred:
Federal		(3,231)		(2,770)		1,430
State		(567)		(180)		(62)
		(3,798)		(2,950)		1,368
Total income taxes	$	3,563	$	22,035	$	6,265
A reconciliation of the expected U.S. statutory rate to the effective rate follows:
		2014		2013		2012
Computed (expected tax rate)		35.0	%	35.0	%	35.0	%
State income taxes (net of federal tax benefit)		3.4		3.8		4.5
State tax credits		(1.6)		(0.8)		(2.8)
Federal credits		(3.6)		(0.2)		(0.6)
Manufacturer’s deduction		(4.6)		(3.4)		(5.1)
(Reversal of) addition to uncertain tax positions		(0.8)		0.2		0.4
State VDA/Nexus Changes		(1.7)		0.0		0.0
Other permanent differences not deductible		0.5		0.1		0.7
Change in valuation allowance		(2.1)		0.0		0.0
Tax effect of pension contribution		0.4		0.0		2.2
Other		(4.4)		0.0		1.5
Effective income tax rate		20.5	%	34.7	%	35.8	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		2014		2013
		(In thousands)
Deferred income tax assets:
Future tax credits	$	3,042	$	2,808
Inventory valuation		3,353		2,893
Employee benefits		2,884		2,742
Insurance		1,244		3,422
Other comprehensive loss		7,194		14,416
Interest		138		118
Deferred gain on sale/leaseback		26		54
Prepaid revenue		1,118		1,619
Other		859		232
Severance		87		237
		19,945		28,541
Deferred income tax liabilities:
Property basis and depreciation difference		10,757		13,274
Pension		725		3,012
		11,482		16,286
Valuation allowance - non-current		390		758
Net deferred income tax asset	$	8,073	$	11,497

Summary of Income Tax Contingencies [Table Text Block]

		2014		2013
		(In thousands)
Beginning balance	$	2,470	$	2,350
Tax positions related to current year:
Additions		46		176
Tax positions related to prior years:
Additions		-		70
Reductions		(181)		(45)
Settlements		-		(81)
Lapses in statues of limitations		(62)		-
Balance as of March 31,	$	2,273	$	2,470