Exhibit 12.1
STATEMENT REGARDING THE COMPUTATION OF RATIO OF COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS TO EARNINGS
| Year Ended December 31, |
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| Nine Months Ended September 30, 2006 |
2005 | 2004 | 2003 | 2002 | 2001 | |||||||||||||||||||
| Fixed charges: |
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| Interest expense |
$ | 225,000 | $ | 533,000 | $ | 795,000 | $ | 420,000 | $ | 333,000 | $ | 327,000 | ||||||||||||
| Estimated interest portion of rent expense |
1,551,000 | 2,130,000 | 2,152,000 | 2,284,000 | 1,536,000 | 415,000 | ||||||||||||||||||
| Total fixed charges |
$ | 1,776,000 | 2,663,000 | $ | 2,947,000 | $ | 2,704,000 | $ | 1,869,000 | $ | 742,000 | |||||||||||||
| Earnings: |
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| Loss from continuing operations before income taxes |
$ | (15,226,000 | ) | $ | (24,357,000 | ) | $ | (23,733,000 | ) | $ | (24,450,000 | ) | $ | (27,932,000 | ) | $ | (9,240,000 | ) | ||||||
| Add: Fixed charges |
1,776,000 | 2,663,000 | 2,947,000 | 2,704,000 | 1,869,000 | 742,000 | ||||||||||||||||||
| Amortization of capitalized interest |
— | 2,000 | 13,000 | 14,000 | 12,000 | 8,000 | ||||||||||||||||||
| Total earnings |
$ | 13,450,000 | $ | (21,692,000 | ) | $ | (20,773,000 | ) | $ | (21,732,000 | ) | (26,051,000 | ) | $ | (8,490,000 | ) | ||||||||
| Ratio of combined fixed charges and preference dividends to earnings(1) |
— | — | — | — | — | — | ||||||||||||||||||
| (1) | For the years ended December 31, 2005, 2004, 2003, 2002 and 2001 and the nine months ended September 30, 2006, the earnings were insufficient to cover fixed charges by $24,357,000, $23,733,000, $24,450,000, $27,932,000, $9,240,000 and $15,226,000, respectively. |