Note H - Derivative Financial Instruments (Tables)

6 Months Ended

Sep. 30, 2024

Notes Tables

Schedule of Derivative Instruments [Table Text Block]

	Asset Derivatives			Liability Derivatives
	Balance Sheet			Balance Sheet
Derivatives not designated as hedging instruments:	Location	Fair Value		Location	Fair Value
Hot-rolled coil steel contracts	Current portion of derivative assets	$	18	Current portion of derivative liability	$	1

	Asset Derivatives			Liability Derivatives
	Balance Sheet			Balance Sheet
Derivatives not designated as hedging instruments:	Location	Fair Value		Location	Fair Value
Hot-rolled coil steel contracts	Current portion of derivative assets	$	74	Current portion of derivative liability	$	1,686

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]

					Pre-Tax
					Loss Reclassified from
		Pre-Tax Gain (Loss)	Location of Loss Reclassified		AOCI into Net
		Recognized in OCI	from AOCI into Net Earnings		Earnings
For the six months ended September 30, 2023:
Hot-rolled coil steel contracts	$	—	Sales	$	(418	)
Total	$	—		$	(418	)

Derivative Instruments, Gain (Loss) [Table Text Block]

		Gain Recognized in Earnings
	Location of Gain	for the Three Months Ended
	Recognized in Earnings	September 30, 2024
Hot-rolled coil steel contracts	Gain on economic hedges of risk	$	194

		Gain Recognized in Earnings
	Location of Gain	for the Six Months Ended
	Recognized in Earnings	September 30, 2024
Hot-rolled coil steel contracts	Gain on economic hedges of risk	$	5,569

		Gain Recognized in Earnings
	Location of Gain	for the Three Months Ended
	Recognized in Earnings	September 30, 2023
Hot-rolled coil steel contracts	Gain on economic hedges of risk	$	4,402

		Gain Recognized in Earnings
	Location of Gain	for the Six Months Ended
	Recognized in Earnings	September 30, 2023
Hot-rolled coil steel contracts	Gain on economic hedges of risk	$	4,832

Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]

Notes Tables

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Gain (Loss) on
	Derivatives
Balance at March 31, 2023	$	(317	)
Other comprehensive income, net of loss, before reclassification		—
Total loss reclassified from AOCI (1)		317
Net current period other comprehensive income		317
Balance at September 30, 2023	$	—