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Condensed Consolidated Balance Sheets (USD $)
In Thousands
Sep. 30, 2011
Dec. 31, 2010
Assets  
Cash and cash equivalents$ 14,761$ 28,948
Short-term investments4571,061
Accounts receivable, net of allowance of $48 and $51 at September 30, 2011 and December 31, 2010, respectively4,7834,792
Inventories9,5915,957
Prepaid and other current assets1,082997
Total current assets30,67441,755
Non-current assets:  
Property and equipment, net2,0452,390
Goodwill1,3161,316
Intangible assets, net1,7981,950
Restricted cash306305
Other assets413451
Total assets36,55248,167
Liabilities and stockholders' equity  
Accounts payable3,7803,230
Accrued liabilities5,6876,003
Deferred revenue74248
Current portion of long-term debt01,747
Current portion of capital lease obligations010
Warrant liability4,6438,465
Total current liabilities14,18419,703
Non-current liabilities:  
Long-term debt4,9103,131
Long-term portion of capital lease obligations06
Other non-current liabilities1,2901,595
Total liabilities20,38424,435
Commitments and contingencies  
Stockholders' equity:  
Preferred stock9,4969,496
Common stock4847
Additional paid-in capital442,561441,034
Accumulated other comprehensive income1108
Accumulated deficit(435,938)(426,953)
Total stockholders' equity16,16823,732
Total liabilities and stockholders' equity$ 36,552$ 48,167