Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)/Income	Common Stock (Class A) Common Stock	Common Stock (Class B) Common Stock
Beginning balance (in shares) at Jan. 30, 2021						22,477,000	7,306,000
Beginning balance at Jan. 30, 2021	$ 160,622	$ 30	$ 155,437	$ 5,135	$ 20
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,959			10,959
Share-based compensation expense	366		366
Employee exercises of stock options (in shares)						360,000
Employee stock option exercises	2,651		2,651
Net change in unrealized gain on available-for-sale securities	3
Ending balance (in shares) at May. 01, 2021						22,837,000	7,306,000
Ending balance at May. 01, 2021	174,601	30	158,454	16,094	23
Beginning balance (in shares) at Jan. 29, 2022						23,719,000	7,306,000
Beginning balance at Jan. 29, 2022	174,713	31	166,929	7,754	(1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	813			813
Share-based compensation expense	$ 563		563
Employee exercises of stock options (in shares)	4,750					5,000
Employee stock option exercises	$ 20		20
Repurchase of common stock (in shares)	(892,033)					(892,000)
Repurchase of common stock	$ (8,177)	(1)		(8,176)
Net change in unrealized gain on available-for-sale securities	3				3
Ending balance (in shares) at Apr. 30, 2022						22,832,000	7,306,000
Ending balance at Apr. 30, 2022	$ 167,935	$ 30	$ 167,512	$ 391	$ 2