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Segment Information and Major Customers (Schedule Of Revenue From Major Customers) (Details) (Customer Concentration Risk [Member]) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk | 53.40% | 58.50% | 61.30% | 56.70%
Chrysler [Member] |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk | 21.10% | 30.20% | 23.40% | 39.60%
Delphi Display Systems [Member] |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk |  |  | 13.50% |
ARAMARK [Member] |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk | 32.30% | 28.30% | 24.40% | 17.10%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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