Cash, Cash Equivalents and Marketable Securities (Tables)

3 Months Ended

May 02, 2020

Cash And Cash Equivalents [Abstract]

Summary of Estimated Fair Value of Cash, Cash Equivalents and Marketable Securities

The following tables summarize the estimated fair value of our cash, cash equivalents and marketable securities and the gross unrealized holding gains and losses (in thousands)

	May 2, 2020
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	45,384	$	—	$	—		$	45,384
Money market funds		15,747		—		—			15,747
U.S. treasury and government agency securities		—		—		—			—
Corporate debt securities		2,600		—		—			2,600
Total cash and cash equivalents		63,731		—		—			63,731
Marketable securities:
U.S. treasury and government agency securities		19,936		399		—			20,335
Corporate debt securities		115,947		1,001		(401	)		116,547
State and local government securities		16,601		117		(106	)		16,612
Variable-rate demand notes		—		—		—			—
Total marketable securities	$	152,484	$	1,517	$	(507	)	$	153,494

	February 1, 2020
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	34,233	$	—	$	—		$	34,233
Money market funds		9,850		—		—			9,850
Corporate debt securities		8,345		—		—			8,345
Total cash and cash equivalents		52,428		—		—			52,428
Marketable securities:
U.S. treasury and government agency securities		25,452		142		(2	)		25,592
Corporate debt securities		148,608		1,121		—			149,729
State and local government securities		22,310		207		—			22,517
Variable-rate demand notes		930		—		—			930
Total marketable securities	$	197,300	$	1,470	$	(2	)	$	198,768

Summary of Gross Unrealized Holding Losses and Fair Value for Investments in an Unrealized Loss Position

The following tables summarize the gross unrealized holding losses and fair value for investments in an unrealized loss position, and the length of time that individual securities have been in a continuous loss position (in thousands):

	May 2, 2020
	Less Than 12 Months					12 Months or Greater				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Marketable securities:
U.S. treasury and government agency securities	$	—	$	—		$	—	$	—	$	—	$	—
Corporate debt securities	$	25,160	$	(401	)	$	—	$	—	$	25,160	$	(401	)
State and local government securities	$	4,664	$	(106	)	$	—	$	—	$	4,664	$	(106	)
Total marketable securities	$	29,824	$	(507	)	$	—	$	—	$	29,824	$	(507	)

	February 1, 2020
	Less Than 12 Months					12 Months or Greater				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Marketable securities:
U.S. treasury and government agency securities	$	567	$	(2	)	$	—	$	—	$	567	$	(2	)
Corporate debt securities	$	—	$	—		$	—	$	—	$	—	$	—
State and local government securities	$	—	$	—		$	—	$	—	$	—	$	—
Total marketable securities	$	567	$	(2	)	$	—	$	—	$	567	$	(2	)