Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Jan. 01, 2021	$ 140,887	$ 58	$ 312,039	$ (144,254)	$ (17,388)	$ (9,568)
Balance, Shares at Jan. 01, 2021		57,693		(27,609)
Issuance of common stock	(1,605)		(1,605)
Issuance of common stock, Shares		294
Treasury stock purchased	(2,110)			$ (2,110)
Treasury stock purchased, Shares				(136)
Amortization of restricted stock units and common stock subject to vesting requirements	2,633		2,633
Dividends declared	(3,254)				(3,254)
Net income	6,361				6,361
Foreign currency translation	269					269
Balance at Apr. 02, 2021	143,181	$ 58	313,067	$ (146,364)	(14,281)	(9,299)
Ending Balance, Shares at Apr. 02, 2021		57,987		(27,745)
Balance at Dec. 31, 2021	143,853	$ 60	300,288	$ (157,294)	11,272	(10,473)
Balance, Shares at Dec. 31, 2021		59,631		(28,358)
Issuance of common stock	(2,432)		(2,432)
Issuance of common stock, Shares		373
Treasury stock purchased	(635)			$ (635)
Treasury stock purchased, Shares				(31)
Amortization of restricted stock units and common stock subject to vesting requirements	3,632		3,632
Dividends declared	(3,474)				(3,474)
Net income	10,505				10,505
Foreign currency translation	(1,134)					(1,134)
Balance at Apr. 01, 2022	$ 150,315	$ 60	$ 301,488	$ (157,929)	$ 18,303	$ (11,607)
Ending Balance, Shares at Apr. 01, 2022		60,004		(28,389)