Line of Credit - Narrative (Details)						3 Months Ended
	Jun. 01, 2020	May 02, 2020 USD ($)	Feb. 20, 2018 $ / shares	Feb. 24, 2017 $ / shares	Mar. 17, 2014 USD ($)	May 02, 2020 USD ($)	May 04, 2019 USD ($)	Mar. 31, 2020 USD ($)	Aug. 30, 2019 USD ($)	Jul. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Letters of credit facility maximum borrowing capacity					$ 25,000,000
Line of credit maturity date					Jan. 31, 2023
Line of credit interest rate term						The interest rate charged on borrowings is selected at our discretion at the time of draw between the London Interbank Offered Rate, plus 0.75%, or at the Bank’s prime rate.
Outstanding borrowing		$ 0				$ 0		$ 23,700,000
Covenant description						We are required to maintain certain financial and non-financial covenants in accordance with the line of credit. The financial covenants require certain levels of leverage and profitability, such as (i) income before income taxes not to be less than $1.0 million (calculated at the end of each fiscal quarter on a trailing 12-month basis), (ii) a maximum ratio of 4.00 to 1.00 as of each quarter end for “Funded Debt to EBITDAR”, defined as the sum of total debt, capital leases and annual rent expense multiplied by six divided by the sum of net income, interest expense, taxes, depreciation, amortization and annual rent expense on a trailing 12-month basis, and (iii) requires minimum eligible inventory, cash, cash equivalents and marketable securities totaling $50.0 million as of the end of each quarter. In addition, maximum investment in fixed assets in any fiscal year of $50.0 million.
Net loss after taxes (not to exceed)						$ (17,395,000)	$ 677,000
Balance sheet leverage		4.7
Multiplier used for Funded Debt to EBITDAR						6
Fixed charge coverage ratio		0.8
Debt covenant, minimum eligible inventory		$ 50,000,000				$ 50,000,000
Maximum
Line of Credit Facility [Line Items]
Net loss after taxes (not to exceed)						$ (1,000,000)
Balance sheet leverage						4.00
Minimum
Line of Credit Facility [Line Items]
Fixed charge coverage ratio						1.25
Stand-by and/or commercial letters of credit
Line of Credit Facility [Line Items]
Letters of credit facility maximum borrowing capacity					$ 15,000,000
Outstanding borrowing		$ 0				$ 0
Letters of credit outstanding, amount									$ 1,300,000	$ 1,100,000
LIBOR
Line of Credit Facility [Line Items]
Line of credit, percentage point added to reference rate					0.75%
Class A common stock
Line of Credit Facility [Line Items]
Cash dividend (in dollars per share) | $ / shares			$ 1.00
Common Stock (Class B)
Line of Credit Facility [Line Items]
Common stock dividends declared | $ / shares			$ 1.00	$ 0.70
Subsequent Event
Line of Credit Facility [Line Items]
Line of credit, percentage point added to reference rate	0.90%