Other Property And Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Gross Cost	$ 1,813	$ 1,822
Accumulated depreciation	1,492	1,396
Net	321	426
Machinery and Equipment [Member]
Gross Cost	978	969
Accumulated depreciation	878	844
Net	100	125
Vehicles [Member]
Gross Cost	772	789
Accumulated depreciation	551	488
Net	221	301
Other [Member]
Depreciable Life	5 years
Gross Cost	63	64
Accumulated depreciation	$ 63	$ 64
Minimum [Member] \| Machinery and Equipment [Member]
Depreciable Life	5 years
Minimum [Member] \| Vehicles [Member]
Depreciable Life	2 years
Maximum [Member] \| Machinery and Equipment [Member]
Depreciable Life	7 years
Maximum [Member] \| Vehicles [Member]
Depreciable Life	5 years

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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