Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2022	17,287,967				8,002,649
Balance at Dec. 31, 2022	$ 863	$ 113,878	$ (2,863)	$ (36,096)	$ (43,820)	$ 31,962
Issuance of stock under employee stock purchase plan (in shares)	33,071				0
Issuance of stock under employee stock purchase plan	$ 2	345	0	0	$ 0	347
Equity compensation expense from awards issued	$ 0	496	0	0	$ 0	496
Issuance of stock upon vesting of restricted share awards (in shares)	179,762				0
Issuance of stock upon vesting of restricted share awards	$ 8	(8)	0	0	$ 0	0
Foreign currency translation adjustment	0	0	54	0	0	54
Net income (loss)	$ 0	0	0	3,837		$ 3,837
Purchase of treasury stock (in shares)	0				640,578	640,578
Purchase of treasury stock	$ 0	0	0	0	$ (8,184)	$ (8,184)
Balance (in shares) at Apr. 01, 2023	17,500,800				8,643,227
Balance at Apr. 01, 2023	$ 873	114,711	(2,809)	(32,259)	$ (52,004)	28,512
Balance (in shares) at Dec. 30, 2023	17,673,427				9,828,606
Balance at Dec. 30, 2023	$ 882	116,579	(2,813)	(19,265)	$ (69,593)	25,790
Issuance of stock under employee stock purchase plan (in shares)	22,789				0
Issuance of stock under employee stock purchase plan	$ 1	363	0	0	$ 0	364
Equity compensation expense from awards issued	$ 0	635	0	0	$ 0	635
Issuance of stock upon vesting of restricted share awards (in shares)	124,044				0
Issuance of stock upon vesting of restricted share awards	$ 6	(6)	0	0	$ 0	$ 0
Retirement of common shares (in shares)	(44,567)				0	(44,567)
Retirement of common shares	$ (2)	(1,315)	0	0	$ 0	$ (1,317)
Foreign currency translation adjustment	0	0	(27)	0	0	(27)
Net income (loss)	$ 0	0	0	3,952	$ 0	$ 3,952
Purchase of treasury stock (in shares)						0
Balance (in shares) at Mar. 30, 2024	17,775,693				9,828,606
Balance at Mar. 30, 2024	$ 887	$ 116,256	$ (2,840)	$ (15,313)	$ (69,593)	$ 29,397