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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, 2019	Dec. 31, 2018
Nature Of Business And Significant Accounting Policies [Abstract]
Net income (loss)	$ 187	$ (10)
Basic EPS, Shares	3,395,521	3,395,521
Effect of dilutive stock options, shares	2,514	0
Diluted EPS, Shares	3,398,035	3,395,521
Net income per share, Basic	$ 0.06	$ 0.00
Effect of dilutive stock options, per share amount	0.00	0.00
Net income per share, Diluted	$ 0.06	$ 0.00
Options excluded from the computation of diluted weighted-average shares outstanding|shares	329,986	332,500

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