Note 3 - Marketable Securities

9 Months Ended

Nov. 28, 2021

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

3. MARKETABLE SECURITIES

All marketable securities are classified as available-for-sale and are carried at fair value, with the unrealized gains and losses, net of tax, included in comprehensive earnings. Realized gains and losses, amortization of premiums and discounts, and interest and dividend income are included in interest and other income in the Consolidated Statements of Operations. The costs of securities sold are based on the specific identification method.

The following is a summary of available-for-sale securities:

	November 28, 2021
	Total		Level 1		Level 2		Level 3
U.S. Treasury and other government securities	$	58,763	$	58,763	$	-	$	-
U.S. corporate debt securities		36,905		36,905		-		-
Total marketable securities	$	95,668	$	95,668	$	-

	February 28, 2021
	Total		Level 1		Level 2		Level 3
U.S. Treasury and other government securities	$	56,906	$	56,906	$	-	$	-
U.S. corporate debt securities		18,041		18,041		-		-
Total marketable securities	$	74,947	$	74,947	$	-	$	-

The following table shows the amortized cost basis of, and gross unrealized gains and losses on, the Company’s available-for-sale securities:

	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses
November 28, 2021:
U.S. Treasury and other government securities	$	59,877	$	18	$	1,132
U.S. corporate debt securities		36,927		15		37
Total marketable securities	$	96,804	$	33	$	1,169
February 28, 2021:
U.S. Treasury and other government securities	$	57,400	$	153	$	647
U.S. corporate debt securities		18,008		52		19
Total marketable securities	$	75,408	$	205	$	666

The estimated fair values of such securities at November 28, 2021 by contractual maturity are shown below:

Due in one year or less	$	57,802
Due after one year through five years		37,866
	$	95,668