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 (Loss) [Member]
Beginning Balance at Dec. 31, 2020	$ 12,774	$ 339	$ 2,036	$ 10,398	$ 1
Beginning Balance, Shares at Dec. 31, 2020		3,395,521
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options, shares	0
Other comprehensive income (loss)	$ (1)				(1)
Stock-based compensation expense	5		5
Net income	410			410
Ending Balance at Dec. 31, 2021	13,188	$ 339	2,041	10,808	0
Ending Balance, Shares at Dec. 31, 2021		3,395,521
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options	$ 122	$ 3	119
Exercise of common stock options, shares	32,500	32,500
Other comprehensive income (loss)	$ 1				1
Stock-based compensation expense	3		3
Net income	100			100
Ending Balance at Dec. 31, 2022	$ 13,414	$ 342	$ 2,163	$ 10,908	$ 1
Ending Balance, Shares at Dec. 31, 2022		3,428,021