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Debt (Tables) | 6 Months Ended
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Jun. 30, 2012
Debt [Abstract] |
Debt | Debt at June 30, 2012, consisted of the following (in thousands):
|  | June 30, 2012 |
|  | Principal |  |  | Unamortized Discount |  |  | Total |
Comerica — Growth Capital Loan A, due 2015 |  | $ | 5,000 |  |  | $ | (66 | ) |  | $ | 4,934 |
Comerica — Revolving Line of Credit, due 2014 |  |  | 2,475 |  |  |  | 0 |  |  |  | 2,475 |
Total debt |  |  | 7,475 |  |  |  | (66 | ) |  |  | 7,409 |
Less: debt — current |  |  | (3,725 | ) |  |  | 33 |  |  |  | (3,692 | )
Debt — non-current |  | $ | 3,750 |  |  | $ | (33 | ) |  | $ | 3,717 |
Debt at December 31, 2011, consisted of the following (in thousands):
|  | December 31, 2011 |
|  | Principal |  |  | Unamortized Discount |  |  | Total |
Comerica — Growth Capital Loan A, due 2015 |  | $ | 5,000 |  |  | $ | (84 | ) |  | $ | 4,916 |
Comerica — Revolving Line of Credit, due 2014 |  |  | 2,300 |  |  |  | 0 |  |  |  | 2,300 |
Total debt |  |  | 7,300 |  |  |  | (84 | ) |  |  | 7,216 |
Less: debt — current |  |  | (2,554 | ) |  |  | 35 |  |  |  | (2,519 | )
Debt — non-current |  | $ | 4,746 |  |  | $ | (49 | ) |  | $ | 4,697 |
Expected principal and interest payments on debt | Principal and interest payments on debt at June 30, 2012, are expected to be as follows for each of the following five years (in thousands):
Year ended December 31, |
2012 (remaining six months) |  | $ | 636 |
2013 |  |  | 2,033 |
2014 |  |  | 4,349 |
2015 |  |  | 1,334 |
2016 |  |  | 0 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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