Condensed Consolidated Statement of Shareholder's Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Shares outstanding, beginning balance at Mar. 29, 2020		21,024,458
Stockholders' equity, beginning balance at Mar. 29, 2020	$ 233,484	$ 211	$ 50,405	$ 182,947	$ (79)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared and paid	(2,479)	0	0	(2,479)	0
Share-based compensation expense	700	$ 0	700	0	0
Vesting of restricted stock (shares)		10,526
Vesting of restricted stock	0	$ 0	0	0	0
Shares surrendered for payroll taxes (shares)		3,314
Shares surrendered for payroll taxes	(54)	$ 0	(54)	0	0
Other comprehensive gain (loss), net of tax	(10)	0	0	0	(10)
Net income	11,788	$ 0	0	11,788	0
Shares outstanding, ending balance at Jun. 28, 2020		21,090,406
Stockholders' equity, ending balance at Jun. 28, 2020	254,637	$ 211	52,510	201,966	(50)
Shares outstanding, beginning balance at Mar. 29, 2020		21,024,458
Stockholders' equity, beginning balance at Mar. 29, 2020	233,484	$ 211	50,405	182,947	(79)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares surrendered for payroll taxes	(54)
Shares repurchased	0
Other comprehensive gain (loss), net of tax	29
Net income	23,978
Shares outstanding, ending balance at Sep. 27, 2020		21,031,670
Stockholders' equity, ending balance at Sep. 27, 2020	243,429	$ 211	51,051	192,256	(89)
Shares outstanding, beginning balance at Jun. 28, 2020		21,090,406
Stockholders' equity, beginning balance at Jun. 28, 2020	254,637	$ 211	52,510	201,966	(50)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared and paid	(2,480)	0	0	(2,480)	0
Share-based compensation expense	686	$ 0	686	0	0
Vesting of restricted stock (shares)		16,016
Vesting of restricted stock	0	$ 0	0	0	0
ESPP shares issued (shares)		42,720
ESPP shares issued	$ 773	$ 0	773	0	0
Shares repurchased (shares)	0
Other comprehensive gain (loss), net of tax	$ 39	0	0	0	39
Net income	12,190	$ 0	0	12,190	0
Shares outstanding, ending balance at Sep. 27, 2020		21,031,670
Stockholders' equity, ending balance at Sep. 27, 2020	243,429	$ 211	51,051	192,256	(89)
Shares outstanding, beginning balance at Mar. 28, 2021		20,969,746
Stockholders' equity, beginning balance at Mar. 28, 2021	265,246	$ 210	51,138	213,898	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared and paid	(2,600)	0	0	(2,600)	0
Share-based compensation expense	799	$ 0	799	0	0
Vesting of restricted stock (shares)		123,002
Vesting of restricted stock	0	$ 1	(1)	0	0
Shares surrendered for payroll taxes (shares)		(45,390)
Shares surrendered for payroll taxes	(1,467)	$ 0	(1,467)	0	0
Shares repurchased (shares)		(100,954)
Shares repurchased	(3,401)	$ (1)	(3,400)	0	0
Net income	16,628	$ 0	0	16,628	0
Shares outstanding, ending balance at Jun. 27, 2021		20,946,404
Stockholders' equity, ending balance at Jun. 27, 2021	275,205	$ 210	47,069	227,926	0
Shares outstanding, beginning balance at Mar. 28, 2021		20,969,746
Stockholders' equity, beginning balance at Mar. 28, 2021	265,246	$ 210	51,138	213,898	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares surrendered for payroll taxes	$ (1,467)
Shares repurchased (shares)	(209,963)
Shares repurchased	$ (7,421)
Other comprehensive gain (loss), net of tax	0
Net income	30,761
Shares outstanding, ending balance at Sep. 26, 2021		20,888,923
Stockholders' equity, ending balance at Sep. 26, 2021	284,313	$ 209	44,801	239,303	0
Shares outstanding, beginning balance at Jun. 27, 2021		20,946,404
Stockholders' equity, beginning balance at Jun. 27, 2021	275,205	$ 210	47,069	227,926	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared and paid	(2,756)	0	0	(2,756)	0
Share-based compensation expense	862	$ 0	862	0	0
Vesting of restricted stock (shares)		11,228
Vesting of restricted stock	0	$ 0	0	0	0
ESPP shares issued (shares)		40,300
ESPP shares issued	$ 889	$ 0	889	0	0
Shares repurchased (shares)	(109,009)	(109,009)
Shares repurchased	$ (4,020)	$ (1)	(4,019)	0	0
Other comprehensive gain (loss), net of tax	0
Net income	14,133	$ 0	0	14,133	0
Shares outstanding, ending balance at Sep. 26, 2021		20,888,923
Stockholders' equity, ending balance at Sep. 26, 2021	$ 284,313	$ 209	$ 44,801	$ 239,303	$ 0