Impairment and Closure Charges (Details) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Impairment And Closure Charges Disclosure [Abstract]
Impairment	$ 0	$ 300,000
Closure charges	800,000	400,000
Impairment and closure charges	$ 838,000	$ 722,000

The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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