Discontinued Operations (Schedule Of Income From Discontinued Operations) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Revenues [Abstract]
Revenues	$ 915	$ 1,234
Operating Expenses [Abstract]
Depreciation	0	101
Income from discontinued operations	$ 915	$ 1,133
Earnings Per Share, Basic, Other Disclosures [Abstract]
Weighted Average Number of Shares Outstanding, Basic	27,876,176	27,776,104
Weighted Average Number of Shares Outstanding, Diluted	27,911,584	27,803,222
Earnings Per Share, Basic and Diluted [Abstract]
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.03	$ 0.04
Discontinued operations	$ 0.03	$ 0.04

This concept represents the total of all depreciation on tangible assets included in discontinued operations.

No definition available.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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The amount of net income (loss) derived from discontinued operations during the period, net of related tax effect, per each share of common stock or unit outstanding during the reporting period.

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The amount of net income or loss derived from discontinued operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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