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Fair Value Measurements Fair Value Measuements (Tables) | 12 Months Ended
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Dec. 31, 2011
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | Our financial assets and liabilities carried at fair value measured on a recurring basis as of December 31, 2011 and 2010, consisted of the following (in thousands):
|  |  |  | Fair Value Measurements Using
|  | Total Fair |  | Quoted prices in |  | Significant other |  | Significant
|  | Value at |  | active markets |  | observable inputs |  | Unobservable inputs
Description |  | December 31, 2011 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Marketable securities (1) |  | $ | 2,798 |  |  | $ | 2,798 |  |  | $ | — |  |  | $ | — |
|  |  |  | Fair Value Measurements Using
|  | Total Fair |  | Quoted prices in |  | Significant other |  | Significant
|  | Value at |  | active markets |  | observable inputs |  | Unobservable inputs
Description |  | December 31, 2010 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Interest rate swap (2) |  | $ | 1,159 |  |  | $ | — |  |  | $ | 1,159 |  |  | $ | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 820 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258 + Details
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