Short-term Investments and Fair Value Measurements (Tables)

3 Months Ended

May 31, 2025

Short-Term Investments [Abstract]

Amortized Cost and Estimated Fair Value of Investment Securities Classified as Held-to-maturity

Amortized cost and estimated fair value of investment securities classified as held-to-maturity were as follows at May 31, 2025 and February 28, 2025 (in thousands):

			Gross		Gross
	Cost or		Unrealized		Unrealized		Estimated
	Amortized		Holding		Holding		Fair
	Cost		Gains		Losses		Value
May 31, 2025
Investment securities due in less than one year	$	—	$	—	$	—	$	—
February 28, 2025
Investment securities due in less than one year	$	5,475	$	4	$	—	$	5,479