Marketable Securities

3 Months Ended

May 27, 2012

Marketable Securities [Abstract]

Marketable Securities

4.MARKETABLE SECURITIES

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

		Gross		Gross
		Unrealized		Unrealized		Estimated
		Gains		Losses		Fair Value
May 27, 2012:
U.S. Treasury and other
government securities	$	30	$	20	$	91,572
U.S. corporate debt securities		31		35		48,284
Total marketable securities	$	61	$	55	$	139,856
February 26, 2012:
U.S. Treasury and other
government securities	$	41	$	53	$	93,479
U.S. corporate debt securities		61		12		45,803
Total marketable securities	$	102	$	65	$	139,282

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 May 27, 2012, by contractual maturity, are shown below:

Due in one year or less	$	45,411
Due after one year through five years		94,445
	$	139,856