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Accrued Liabilities | 12 Months Ended
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Dec. 31, 2012
Accrued Liabilities | 8. Accrued Liabilities Accrued liabilities consist of the following as of December 31:
(in thousands) |  | 2012 |  |  | 2011 |
Accrued compensation |  | $ | 2,549 |  |  | $ | 1,890 |
Other accrued liabilities |  |  | 1,426 |  |  |  | 1,306 |
|  | $ | 3,975 |  |  | $ | 3,196 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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