Note H - Derivative Financial Instruments (Tables)

9 Months Ended

Dec. 31, 2023

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	$	26	Current portion of derivative liability	$	808

	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	$	536	Current portion of derivative liability	$	2,212

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

	Pre-Tax Gain Recognized in OCI		Location of Loss Reclassified from AOCI into Net Earnings	Pre- Tax Loss Reclassified from AOCI into Net Earnings
For the three months ended December 31, 2023:
Hot-rolled coil steel contracts	$	—	Sales	$	—
Total	$	—		$	—
For the three months ended December 31, 2022:
Hot-rolled coil steel contracts	$	22	Sales	$	(861	)
Total	$	22		$	(861	)
For the nine months ended December 31, 2023:
Hot-rolled coil steel contracts	$	—	Sales	$	(418	)
Total	$	—		$	(418	)
For the nine months ended December 31, 2022:
Hot-rolled coil steel contracts	$	9,446	Sales	$	(2,977	)
Total	$	9,446		$	(2,977	)

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

		Loss Recognized in Earnings
	Location of Loss	for the Three Months Ended
	Recognized in Earnings	December 31, 2023
Hot-rolled coil steel contracts	Gain (loss) on economic hedges of risk	$	(4,126	)

		Gain Recognized in Earnings
	Location of Gain	for the Nine Months Ended
	Recognized in Earnings	December 31, 2023
Hot-rolled coil steel contracts	Gain (loss) on economic hedges of risk	$	706

		Gain Recognized in Earnings
	Location of Gain	for the Three Months Ended
	Recognized in Earnings	December 31, 2022
Hot-rolled coil steel contracts	Gain (loss) on economic hedges of risk	$	822

		Gain Recognized in Earnings
	Location of Gain	for the Nine Months Ended
	Recognized in Earnings	December 31, 2022
Hot-rolled coil steel contracts	Gain (loss) on economic hedges of risk	$	7,326

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 December 31, 2023	$	—

	Gain (Loss) on
	Derivatives
Balance at March 31, 2022	$	(10,269	)
Other comprehensive income, net of loss, before reclassification		7,164
Total loss reclassified from AOCI (1)		2,258
Net current period other comprehensive income		9,422
Balance at December 31, 2022	$	(847	)