Short-term Investments and Fair Value Measurements (Tables)

3 Months Ended

May 31, 2024

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, 2024 and February 29, 2024 (in thousands):

		Gross	Gross
	Cost or	Unrealized	Unrealized	Estimated
	Amortized	Holding	Holding	Fair
	Cost	Gains	Losses	Value
May 31, 2024
Investment securities due in less than one year	$32,326	$-	$59	$32,267
February 29, 2024
Investment securities due in less than one year	$29,325	$-	$45	$29,280