Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Operating Activities    
Net loss $ (8,671) $ (17,332)
Adjustments to reconcile net loss to cash used in operating activities:    
Amortization and depreciation 2,561 2,294
Amortization of investment premiums, net 807 894
Stock-based compensation 7,165 5,206
Deferred income taxes   6,668
Gain on sale of available-for-sale securities   (9)
Write down of long-lived assets 71 29
Changes in operating assets and liabilities:    
Accounts receivable (5,858) (5,338)
Inventory (864) (1,803)
Prepaid and other assets (30) 183
Accounts payable and accrued expenses 8,969 7,263
Amounts due to related party   (1,746)
Accrued compensation 3,892 623
Deferred revenue and deferred profit (1,688) (2,825)
Other long-term liabilities (172) 721
Net cash provided by (used in) operating activities 6,182 (5,172)
Investing Activities    
Purchases of property and equipment (3,026) (2,187)
Purchases of intangible assets (390)  
Purchases of available-for-sale securities (66,369) (70,967)
Maturities of available-for-sale securities 69,900 98,575
Net cash provided by investing activities 115 25,421
Financing Activities    
Payments on capital leases (30) (58)
Repurchases of common stock (9,236)  
Net proceeds from issuance of common stock 1,570 1,755
Net cash provided by (used in) financing activities (7,696) 1,697
Effect of exchange rate changes on cash and cash equivalents 7 12
Increase (decrease) in cash and cash equivalents (1,392) 21,958
Cash and cash equivalents at beginning of period 28,026 21,563
Cash and cash equivalents at end of period $ 26,634 $ 43,521