Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Beginning Balance at Jan. 02, 2021	$ 485,134	$ 625	$ 420,202	$ 2,720	$ 79,896	$ (18,309)
Beginning Balance, Shares at Jan. 02, 2021		58,998,711
Vesting of restricted stock, Shares		147,106
Grants of restricted stock		$ 3	(3)
Forfeitures of restricted stock		$ (1)	1
Purchases of treasury stock	(1,005)					(1,005)
Purchases of treasury stock, Shares		(42,414)
Retirement of treasury stock			(844)		(161)	1,005
Stock-based compensation	1,750		1,750
Issuance in acquisition of Eco	6,108	$ 4	6,104
Issuance in acquisition of Eco, Shares		357,797
Net income attributable to the Company	12,384				12,384
Other comprehensive income, net of tax expense	4,895			4,895
Ending Balance at Apr. 03, 2021	509,266	$ 631	427,210	7,615	92,119	(18,309)
Ending Balance, Shares at Apr. 03, 2021		59,461,200
Beginning Balance at Jan. 01, 2022	529,097	$ 635	433,347	7,006	106,398	(18,289)
Beginning Balance, Shares at Jan. 01, 2022		59,696,117
Vesting of restricted stock, Shares		288,962
Grants of restricted stock		$ 5	(5)
Purchases of treasury stock	(1,663)					(1,663)
Purchases of treasury stock, Shares		(84,492)
Retirement of treasury stock		$ (1)	(1,335)		(327)	1,663
Stock-based compensation	2,205		2,205
Net income attributable to the Company	23,169				23,169
Change in redemption value of redeemable non-controlling interest	(2,136)				(2,136)
Other comprehensive income, net of tax expense	2,983			2,983
Ending Balance at Apr. 02, 2022	$ 553,655	$ 639	$ 434,212	$ 9,989	$ 127,104	$ (18,289)
Ending Balance, Shares at Apr. 02, 2022		59,900,587