Annual report pursuant to Section 13 and 15(d)

Consolidated Statements Of Cash Flows

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Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operating Activities      
Net income (loss) $ (22,024) $ 10,114 $ 4,329
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:      
Amortization and depreciation 3,159 1,873 841
Amortization of investment premiums, net 1,179 1,258 (1)
Stock-based compensation 7,368 4,215 959
Deferred income taxes 6,668 (6,668)  
Gain on sale of available-for-sale securities (9)    
Write down of long-lived assets 150 36 32
Changes in operating assets and liabilities:      
Accounts receivable (7,374) 6,660 (8,356)
Inventory (657) (4,575) 825
Prepaid and other assets 155 (1,458) (1,680)
Accounts payable and accrued expenses 6,768 (1,937) 2,902
Amounts due to related party (1,746) (762) 2,168
Accrued compensation (51) 424 1,220
Deferred revenue and deferred profit (1,293) (4,528) 6,550
Other long-term liabilities 598 186 71
Net cash provided by (used in) operating activities (7,109) 4,838 9,860
Investing Activities      
Purchase of property and equipment (2,962) (2,960) (1,409)
Purchases of intangibles (201) (1,275)  
Purchases of available-for-sale securities (111,369) (111,807)  
Maturities of available-for-sale securities 125,350 37,667 1,800
Net cash provided by (used in) investing activities 10,818 (78,375) 391
Financing Activities      
Payments on capital leases (82) (123) (108)
Proceeds from issuance of common stock 2,815 1,743 605
Proceeds from initial public offering, net of costs   75,550 (747)
Net cash provided by (used in) financing activities 2,733 77,170 (250)
Effect of exchange rate changes on cash and cash equivalents 21 9 1
Increase in cash and cash equivalents 6,463 3,642 10,002
Cash and cash equivalents at beginning of year 21,563 17,921 7,919
Cash and cash equivalents at end of year 28,026 21,563 17,921
Supplemental disclosures of cash flow information:      
Cash paid for interest 9 29 45
Cash paid for income taxes   382 411
Supplemental disclosures of non cash investing and financing information:      
Unrealized gain (loss) on available-for-sale securities (20) 42 (2)
Accrued purchase of property and equipment $ 708 $ 554 $ 359