Employee Benefit Plans (Table Text Block)	3 Months Ended
Jun. 30, 2022
Compensation and Retirement Disclosure [Abstract]
Components of Net Periodic Post Retirement Benefit Cost	Quarter Ended June 30, 2022 2021 (Unaudited) (In thousands) Service cost for benefits earned during the period $ 332 $ 350 Other components of net periodic benefit costs: Interest cost on accumulated postretirement benefit 287 227 Other components 17 53 Total other components of net periodic benefit costs 304 280 Net periodic postretirement benefit cost$ 636 $ 630

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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Period Type:	duration