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Operating Income for Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 29, 2013 | Mar. 30, 2012
Operating Income |  |  |  |
Operating Income | $ 949 |  | $ 2,821 |
Laser Products |  |  |  |
Operating Income |  |  |  |
Operating Income | 4,208 |  | 3,880 |
Precision Technologies |  |  |  |
Operating Income |  |  |  |
Operating Income | 3,459 |  | 4,153 |
Corporate, shared services and unallocated |  |  |  |
Operating Income |  |  |  |
Operating Income | $ (6,718) | [1] | $ (5,212) | [1]
[1] | Corporate and shared services costs primarily represent corporate and shared service function costs which are not allocated to the operating segments, including restructuring and all acquisition related costs.

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Details
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Namespace Prefix: | us-gaap_
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