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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2013
Inventory Disclosure [Abstract] |
Components of Inventories | The components of inventories as of December 31 were as follows:
(in thousands) | 2013 |  | 2012
Raw materials | $ | 14,825 |  |  | $ | 16,422 |
Work in process | 13,168 |  |  | 19,234 |
Inventories | $ | 27,993 |  |  | $ | 35,656 |

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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 -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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