Condensed Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Jan. 01, 2022	$ 52	$ 207	$ 4,308	$ 4,567
Net income (loss)			205	205
Ending balance, value at Apr. 02, 2022	52	207	4,513	4,772
Beginning balance, value at Jan. 01, 2022	52	207	4,308	4,567
Net income (loss)				(3)
Ending balance, value at Jul. 02, 2022	52	207	4,224	4,483
Beginning balance, value at Apr. 02, 2022	52	207	4,513	4,772
Net income (loss)			(208)	(208)
Ending balance, value at Jul. 02, 2022	52	207	4,224	4,483
Beginning balance, value at Dec. 31, 2022	52	263	3,783	4,098
Stock-based compensation		20		20
Net income (loss)			(102)	(102)
Ending balance, value at Apr. 01, 2023	52	283	3,681	4,016
Beginning balance, value at Dec. 31, 2022	52	263	3,783	4,098
Net income (loss)				(420)
Ending balance, value at Jul. 01, 2023	52	296	3,363	3,711
Beginning balance, value at Apr. 01, 2023	52	283	3,681	4,016
Stock-based compensation		13		13
Net income (loss)			(318)	(318)
Ending balance, value at Jul. 01, 2023	$ 52	$ 296	$ 3,363	$ 3,711