Description Of Business And Significant Accounting Policies (Reconciliations Of The Numerators And Denominators Of Our Basic And Diluted Earnings Per Share) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net loss per share [Abstract]
Net loss	$ (260,000)	$ (908,000)	$ (1,627,000)	$ (1,404,000)	$ (19,167,000)	$ (4,963,000)	$ (76,000)	$ (515,000)	$ (4,199,000)	$ (24,721,000)	$ (788,000)
Weighted average shares - basic									6,091,028	6,084,241	6,084,241
Dilution effect of share-based compensation, treasury method											$ 752
Weighted average shares - dilutive									6,091,028	6,084,241	6,084,993
Basic	$ (0.04)	$ (0.15)	$ (0.27)	$ (0.23)	$ (3.15)	$ (0.82)	$ (0.01)	$ (0.08)	$ (0.69)	$ (4.06)	$ (0.13)
Dilutive									$ (0.69)	$ (4.06)	$ (0.13)