Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Stock Subscriptions Receivable [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Issuance of stock under employee stock purchase plan (in shares)	53,906					0
Issuance of stock under employee stock purchase plan	$ 3	$ 0	$ 58	$ 0	$ 0	$ 0	$ 61
Equity compensation expense from awards issued	$ 0	0	545	0	0	$ 0	545
Issuance of stock upon vesting of restricted share awards (in shares)	175,000					0
Issuance of stock upon vesting of restricted share awards	$ 9	0	(9)	0	0	$ 0	$ 0
Purchase of treasury stock (in shares)	0					344,172	344,172
Purchase of treasury stock	$ 0	0	0	0	0	$ (911)	$ (911)
Foreign currency translation adjustment	0	0	0	(111)	0	0	(111)
Net income	$ 0	0	0	0	1,007	$ 0	1,007
Balance (in shares) at Jan. 02, 2021	16,224,191					4,681,311
Balance at Jan. 02, 2021	$ 811	(420)	109,588	(2,550)	(67,974)	$ (17,217)	22,238
Stock subscription receivable (in shares)	57,696					0
Stock subscription receivable	$ 3	97	(3)	0	0	$ 0	97
Equity compensation expense from awards issued	$ 0	0	545	0	0	$ 0	545
Balance (in shares) at Apr. 03, 2021	16,510,793					5,025,483
Balance at Apr. 03, 2021	$ 826	$ (323)	110,179	(2,661)	(66,967)	$ (18,128)	22,926
Issuance of stock under employee stock purchase plan (in shares)	37,133					0
Issuance of stock under employee stock purchase plan	$ 2		124	0	0	$ 0	126
Equity compensation expense from awards issued	$ 0		403	0	0		403
Issuance of stock upon vesting of restricted share awards (in shares)	175,000					0
Issuance of stock upon vesting of restricted share awards	$ 9		(9)	0	0	$ 0	$ 0
Purchase of treasury stock (in shares)	0					406,480	406,480
Purchase of treasury stock	$ 0		0	0	0	$ (2,781)	$ (2,781)
Foreign currency translation adjustment	0		0	(35)	0		(35)
Net income	0		0	0	6,520		6,520
Balance at Jan. 01, 2022							25,969
Equity compensation expense from awards issued	$ 0		403	0	0		403
Balance (in shares) at Apr. 02, 2022	17,115,290					7,018,702
Balance at Apr. 02, 2022	$ 856		$ 111,586	$ (2,734)	$ (50,465)	$ (29,041)	$ 30,202