Methane Project (Schedule Of The Methane Project) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Methane Project [Line Items]
Methane project, at cost	$ 558	$ 1,813
Accumulated depreciation	(311)	(1,492)
Net	247	321
Methane Project [Member]
Methane Project [Line Items]
Methane project, at cost	4,945	4,865
Accumulated depreciation	(556)	(420)
Net	$ 4,389	$ 4,445

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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