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Note 3 - Marketable Securities (Tables)

6 Months Ended

Aug. 31, 2025

Notes Tables

Debt Securities, Available-for-Sale [Table Text Block]

		August 31, 2025
		Total				Level 1				Level 2				Level 3
U.S. Treasury and other government securities		$	32,010			$	32,010			$	-			$	-
Total marketable securities		$	32,010			$	32,010			$	-			$	-

		March 2, 2025
		Total				Level 1				Level 2				Level 3
U.S. Treasury and other government securities		$	47,213			$	47,213			$	-			$	-
Total marketable securities		$	47,213			$	47,213			$	-			$	-

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

		Amortized Cost Basis				Gross Unrealized Gains				Gross Unrealized Losses
August 31, 2025:
U.S. Treasury and other government securities		$	32,304			$	9			$	303
Total marketable securities		$	32,304			$	9			$	303
March 2, 2025:
U.S. Treasury and other government securities		$	48,124			$	24			$	935
Total marketable securities		$	48,124			$	24			$	935

Investments Classified by Contractual Maturity Date [Table Text Block]

Due in one year or less		$	28,132
Due after one year through five years			3,878
		$	32,010

X

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Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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