Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total
Beginning balance (shares) at Dec. 30, 2020	36,423,505
Beginning balance at Dec. 30, 2020	$ 364	$ 339,561	$ (61,514)	$ (833)	$ 277,578
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		853			853
Issuance of common stock upon exercise of stock options	$ 1	325			326
Issuance of common stock upon exercise of stock options (shares)	61,419
Forfeiture of common stock related to restricted shares (shares)	(6,241)
Other comprehensive income (loss), net of tax				141	141
Net income			3,964		3,964
Ending balance (shares) at Mar. 31, 2021	36,478,683
Ending balance at Mar. 31, 2021	$ 365	340,739	(57,550)	(692)	282,862
Beginning balance (shares) at Dec. 29, 2021	36,601,648
Beginning balance at Dec. 29, 2021	$ 365	342,941	(32,393)	(290)	310,623
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		826			826
Issuance of common stock upon exercise of stock options	$ 1	1,529			$ 1,530
Issuance of common stock upon exercise of stock options (shares)	141,848				141,848
Other comprehensive income (loss), net of tax				512	$ 512
Net income			2,115		2,115
Ending balance (shares) at Mar. 30, 2022	36,743,496
Ending balance at Mar. 30, 2022	$ 366	$ 345,296	$ (30,278)	$ 222	$ 315,606