Cash, Cash Equivalents and Marketable Securities (Tables)

12 Months Ended

Feb. 02, 2019

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):

	February 2, 2019
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	26,336	$	—	$	—		$	26,336
Money market funds		3,689		—		—			3,689
Corporate debt securities		22,397		—		—			22,397
Total cash and cash equivalents		52,422		—		—			52,422
Marketable securities:
U.S. treasury and government agency securities		4,326		2		—			4,328
Corporate debt securities		55,122		98		(8	)		55,212
State and local government securities		51,462		13		(43	)		51,432
Variable-rate demand notes		1,940		—		—			1,940
Total marketable securities	$	112,850	$	113	$	(51	)	$	112,912

	February 3, 2018
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	21,911	$	—	$	—		$	21,911
Money market funds		2,130		—		—			2,130
Total cash and cash equivalents		24,041		—		—			24,041
Marketable securities:
State and local government securities		68,620		9		(130	)		68,499
Variable-rate demand notes		29,365		—		—			29,365
Total marketable securities	$	97,985	$	9	$	(130	)	$	97,864

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):

	February 2, 2019
	Less Than Twelve Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Marketable securities:
Corporate debt securities	$	14,523	$	(8	)	$	—	$	—		$	14,523	$	(8	)
State and local government securities		26,986		(20	)		9,548		(23	)		36,534		(43	)
Total marketable securities	$	41,509	$	(28	)	$	9,548	$	(23	)	$	51,057	$	(51	)

	February 3, 2018
	Less Than Twelve Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Marketable securities:
State and local government securities	$	53,655	$	(129	)	$	610	$	(1	)	$	54,265	$	(130	)
Total marketable securities	$	53,655	$	(129	)	$	610	$	(1	)	$	54,265	$	(130	)