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, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Operating Activities    
Net loss $ (6,562) $ (1,148)
Adjustments to reconcile net loss to cash used in operating activities:    
Amortization and depreciation 870 676
Amortization of investment premiums, net 249 317
Stock-based compensation 2,223 1,605
Deferred income taxes   (691)
Gain on sale of available-for-sale securities      
Write down of long-lived assets 69 1
Changes in operating assets and liabilities:    
Accounts receivable (648) (4,546)
Inventory 1,316 2,189
Prepaid and other assets 228 461
Accounts payable and accrued expenses 1,486 1,159
Amounts due to related party   (1,746)
Accrued compensation 1,567 456
Deferred revenue and deferred profit (1,515) (818)
Other long-term liabilities (363) (9)
Net cash used in operating activities (1,080) (2,094)
Investing Activities    
Purchase of property and equipment (848) (664)
Purchase of intangible assets (195)  
Purchases of available-for-sale securities (32,390) (28,642)
Maturities of available-for-sale securities 30,250 42,565
Net cash provided by (used in) investing activities (3,183) 13,259
Financing Activities    
Payments on capital leases (24) (25)
Net proceeds from issuance of common stock 55 441
Net cash provided by financing activities 31 416
Effect of exchange rate changes on cash and cash equivalents 2 3
Increase (decrease) in cash and cash equivalents (4,230) 11,584
Cash and cash equivalents at beginning of period 28,026 21,563
Cash and cash equivalents at end of period $ 23,796 $ 33,147