Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2021	$ 13,188	$ 339	$ 2,041	$ 10,808	$ 0
Beginning Balance, Shares at Dec. 31, 2021		3,395,521
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	0
Stock-based compensation expense	1		1
Net loss	(9)			(9)
Ending Balance at Mar. 31, 2022	13,180	$ 339	2,042	10,799	0
Ending Balance, Shares at Mar. 31, 2022		3,395,521
Beginning Balance at Dec. 31, 2022	13,414	$ 342	2,163	10,908	1
Beginning Balance, Shares at Dec. 31, 2022		3,428,021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	(4)				(4)
Net loss	(44)			(44)
Ending Balance at Mar. 31, 2023	$ 13,366	$ 342	$ 2,163	$ 10,864	$ (3)
Ending Balance, Shares at Mar. 31, 2023		3,428,021