Nature Of Business And Significant Accounting Policies (Schedule Of Net Income (Loss) Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Nature Of Business And Significant Accounting Policies [Abstract]
Net income (loss)	$ 410	$ (124)
Basic EPS, Shares	3,395,521	3,395,521
Effect of dilutive stock options, shares	49,418	0
Diluted EPS, Shares	3,444,939	3,395,521
Net income (loss) per share, Basic	$ 0.12	$ (0.04)
Effect of dilutive stock options, per share amount	0	0
Net income (loss) per share, Diluted	$ 0.12	$ (0.04)
Options excluded from the computation of diluted weighted-average shares outstanding|shares	283,082	332,500