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Description Of Business And Significant Accounting Policies (Reconciliations Of The Numerators And Denominators On Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Common Share [Abstract]
Net loss	$ 132	$ (315)	$ (178)	$ (213)	$ (260)	$ (908)	$ (1,627)	$ (1,404)	$ (574)	$ (4,199)	$ (24,721)
Weighted average shares - basic									10,081,218	6,091,028	6,084,241
Weighted average shares - dilutive									10,081,218	6,091,028	6,084,241
Basic	$ 0.02	$ (0.03)	$ (0.02)	$ (0.03)	$ (0.04)	$ (0.15)	$ (0.27)	$ (0.23)	$ (0.06)	$ (0.69)	$ (4.06)
Dilutive									$ (0.06)	$ (0.69)	$ (4.06)

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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