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Business Segments and Major Customers (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Major Customer Disclosure
Revenues	$ 83,359	$ 100,263	$ 66,214	$ 62,527	$ 90,921	$ 31,743	$ 38,862	$ 161,864	$ 312,363	$ 323,390	$ 113,007
Property, plant and equipment, net	81,105				67,770				81,105	67,770
United States
Major Customer Disclosure
Revenues									103,367	23,528	19,064
Property, plant and equipment, net	79,800				66,700				79,800	66,700
Japan
Major Customer Disclosure
Revenues									97,726	117,101	91,959
Korea
Major Customer Disclosure
Revenues									94,197	181,865	1,262
Canada
Major Customer Disclosure
Revenues									14,750	592	329
Europe
Major Customer Disclosure
Revenues									1,992	157	237
Asia-Other
Major Customer Disclosure
Revenues									331	147	156
India
Major Customer Disclosure
Property, plant and equipment, net	1,200				1,000				1,200	1,000
Other foreign locations
Major Customer Disclosure
Property, plant and equipment, net	$ 100				$ 100				$ 100	$ 100

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; net of accumulated depreciation. 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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