Derivatives (Table Text Block)	3 Months Ended
	Jun. 30, 2022
Derivative Instrument Detail [Abstract]
Derivatives	June 30, 2022   March 31, 2022     (Unaudited)         (In thousands) Interest rate contracts designated as hedging instruments:         Assets $ 149 $ – Liabilities   –   587 Notional amount  75,000   235,000
Derivative Fair Values Located in Accounts Payable and Accrued Expenses in the Balance Sheet	The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended         June 30, 2022   June 30, 2021     (Unaudited)     (In thousands) Gain recognized in AOCI on interest rate contracts $ (736) $ (919) Loss reclassified from AOCI into income$ 566 $ 987