Option Activity (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 30, 2022 USD ($) $ / shares shares	[1]
Share-Based Payment Arrangement [Abstract]
Number of shares outstanding, Options Balance | shares	403,727
Number of shares outstanding, Options Granted | shares	37,500
Number of shares outstanding, Options forfeited and expired | shares	0
Exercise of stock options (in shares) | shares	0
Number of shares outstanding, Options Balance | shares	441,227
Number of shares outstanding, Exercisable | shares	346,228
Weighted-average exercise price, Options Balance | $ / shares	$ 43.61
Weighted-average exercise price, Options Granted | $ / shares	87.90
Weighted-average exercise price, Options forfeited and expired | $ / shares	0
Weighted-average exercise price, Options Exercised | $ / shares	0
Weighted-average exercise price, Options Balance | $ / shares	47.38
Weighted-average exercise price, Exercisable | $ / shares	$ 37.48
Weighted average remaining contractual term, Balance	5 years 4 months 13 days
Weighted average remaining contractual term, Exercisable	4 years 7 months 20 days
Aggregate intrinsic value, Balance | $	$ 22,817
Aggregate intrinsic value, Exercisable | $	$ 21,330

[1] Does not include restricted stock or employee stock purchase plans.