Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements Of Cash Flows

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Condensed Consolidated Statements Of Cash Flows (USD $)
In Thousands
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Operating activities:    
Net loss $ (11,254) $ (8,047)
Adjustments to reconcile net loss to net cash used in operating activities:    
Amortization of intangible assets 2,787 402
Depreciation and amortization of property and equipment 5,678 5,298
Revaluation of redeemable convertible preferred stock warrant liability   677
Gain from extinguishment of asset retirement obligation (124)  
Loss on disposal of property and equipment 31  
Stock-based compensation 7,393 6,466
Accretion of asset retirement obligation 27  
Amortization of debt discount   70
Accretion (amortization) of premium/discount on marketable securities 501 511
Changes in operating assets and liabilities:    
Accounts receivable (3,991) (8,132)
Inventories (2,423) (331)
Prepaid expenses and other current assets (844) (213)
Other assets 20 2,602
Accounts payable (1,699) (1,360)
Accrued compensation (1,942) (472)
Other accrued liabilities 7,355 (4,247)
Deferred revenues 891 (9,276)
Net provided by (used in) in operating activities 2,406 (16,052)
Investing activities:    
Change in restricted cash (46) 65
Purchase of property and equipment (7,813) (4,740)
Purchase of marketable securities (50,900) (49,051)
Proceeds from sale of marketable securities 5,008 1,605
Proceeds from maturities of marketable securities 6,500 70,696
Net provided by (used in) in investing activities (47,251) 18,575
Financing activities:    
Principal payments on financing obligations   (3,979)
Payments in preparation for initial public offering   (3,870)
Proceeds from issuance of common stock on IPO   72,551
Proceeds from exercises of stock options 2,476 279
Net cash provided by (used in) financing activities 2,476 64,981
Effect of exchange rate changes on cash and cash equivalents 105 (15)
Net increase (decrease) in cash and cash equivalents (42,264) 67,489
Cash and cash equivalents at the beginning of the period 72,396 31,785
Cash and cash equivalents at the end of the period 30,132 99,274
Reclassification of preferred stock warrant from liability to additional paid-in capital   $ 2,686
Conversion of preferred stock to common stock and additional paid-in capital   179,672