Discontinued Operations - Major components of assets and liabilities of discontinued operations (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]
Current Assets	$ 1,019	$ 18,487
Investments		85
Net Plant	113	520
Assets of Discontinued Operations	1,132	19,092
Current Liabilities	5,332	11,156
Liabilities of Discontinued Operations	$ 5,332	$ 11,156

For the disposal group, including a component of the entity (discontinued operation), carrying value (net of accumulated depreciation and any write-downs) of tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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