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Inventories Schedule of Inventories (Tables) | 12 Months Ended
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Dec. 31, 2011
Inventory Disclosure [Abstract] |
Schedule of Inventory, Current [Table Text Block] | Inventories at December 31, 2011 and 2010, consisted of the following (in thousands):
| 2011 |  | 2010
Finished goods | $ | 38,095 |  |  | $ | 30,780 |
Work-in-process | 6,047 |  |  | 7,012 |
Raw materials | 25,769 |  |  | 22,805 |
Total | $ | 69,911 |  |  | $ | 60,597 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic -SubTopic -Publisher SEC -Number 210 -Article 5 -Subparagraph a,b,c -Name Regulation S-X (SX) -Paragraph 6 -Section 2 + Details
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