Note 3 - Marketable Securities (Tables)

9 Months Ended

Dec. 01, 2024

Notes Tables

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

	December 1, 2024
	Total		Level 1		Level 2		Level 3
U.S. Treasury and other government securities	$	57,288	$	57,288	$	-	$	-
Total marketable securities	$	57,288	$	57,288	$	-	$	-

	March 3, 2024
	Total		Level 1		Level 2		Level 3
U.S. Treasury and other government securities	$	67,210	$	67,210	$	-	$	-
U.S. corporate debt securities		3,434		3,434		-		-
Total marketable securities	$	70,644	$	70,644	$	-	$	-

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

	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses
December 1, 2024:
U.S. Treasury and other government securities	$	58,610	$	28	$	1,350
Total marketable securities	$	58,610	$	28	$	1,350
March 3, 2024:
U.S. Treasury and other government securities	$	70,320	$	-	$	3,110
U.S. corporate debt securities		3,435		-		1
Total marketable securities	$	73,755	$	-	$	3,111

Investments Classified by Contractual Maturity Date [Table Text Block]

Due in one year or less	$	44,584
Due after one year through five years		12,704
	$	57,288