Marketable Securities

12 Months Ended

Feb. 26, 2012

Marketable Securities [Abstract]

Marketable Securities

2. MARKETABLE SECURITIES

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

		Gross		Gross
		Unrealized		Unrealized		Estimated
		Gains		Losses		Fair Value
February 26, 2012:
U.S. Treasury and other
government securities	$	41	$	53	$	93,479
U.S. corporate debt securities		61		12		45,803
Total debt securities	$	102	$	65	$	139,282
February 27, 2011:
U.S. Treasury and other
government securities	$	39	$	78	$	94,777
U.S. corporate debt securities		47		12		43,472
Total debt securities	$	86	$	90	$	138,249

The gross realized gains on the sales of securities were $43,$11 and $14 for fiscal years 2012, 2011 and 2010,respectively,and the gross realized losses were $65,$47 and $90 for fiscal years 2012,2011 and 2010, respectively.

The estimated fair values of such securities were determined based on observable inputs, which were quoted market prices for identical assets in active markets. The estimated fair values of such securities at February 26, 2012, by contractual maturity, are shown below:

Due in one year or less	$	68,340
Due after one year through five years	_	70,942
	$	139,282