Investments (Tables)

6 Months Ended

Jul. 31, 2011

Investments

Summary Of Investments

	July 31, 2011						January 30, 2011
(in thousands)	Market Value		Adjusted Cost Basis		Unrealized Gain		Market Value		Adjusted Cost Basis		Unrealized Gain
Agency securities	$	53,363	$	53,302	$	61	$	54,747	$	54,658	$	89
Corporate issues		13,656		13,536		120		16,576		16,354		222
Bank time deposits		106,000		106,000		—		68,000		68,000		—
Total investments	$	173,019	$	172,838	$	181	$	139,323	$	139,012	$	311

Summary Of Investment Maturities

	July 31, 2011				January 30, 2011
(in thousands)	Market Value		Adjusted Cost Basis		Market Value		Adjusted Cost Basis
Within 1 year	$	141,937	$	141,760	$	112,237	$	112,077
After 1 year through 5 years		31,082		31,078		27,086		26,935
Total investments	$	173,019	$	172,838	$	139,323	$	139,012

Summarizes Unrealized Gains (Losses) In Addition To The Tax Associated With these Comprehensive Income

	Three months ended					Six months ended
(in thousands)	July 31, 2011			August 1, 2010		July 31, 2011			August 1, 2010
Unrealized (loss) gain, net of tax	$	(64	)	$	94	$	(101	)	$	26
Increase (decrease) to deferred tax liability		(19	)		20		(29	)		(5	)

Summarizes Interest Income Generated From Investments And Cash And Cash Equivalents

	Three months ended				Six months ended
(in thousands)	July 31, 2011		August 1, 2010		July 31, 2011		August 1, 2010
Interest income	$	277	$	279	$	581	$	503