Note G - Derivative Financial Instruments - Change in Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2024	Jun. 30, 2023
Balance		$ 127,475	$ 115,432
Net current period other comprehensive income		0	317
Balance		$ 129,687	123,369
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance			(317)
Other comprehensive income, net of loss, before reclassification			0
Total loss reclassified from AOCI (1)	[1]		317
Net current period other comprehensive income			317
Balance			$ 0

[1] The loss reclassified from AOCI is presented net of tax benefits of approximately $0.1 million which are included in the provision for (benefit from) income taxes on the Company's Consolidated Statement of Operations for the three months ended June 30, 2023.