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
 6 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Operating Activities    
Net loss $ (25,643) $ (8,566)
Adjustments to reconcile net loss to net cash provided (used in) by operating activities:    
Depreciation and amortization 3,336 1,715
Loss on disposition of assets 23  
Stock-based compensation 11,537 3,064
Remeasurement of preferred stock warrants   4,499
Amortization of premium on investments 192  
Amortization of debt issuance cost and debt discount 132 58
Changes in assets and liabilities:    
Accounts receivable (13,649) (9,223)
Prepaid expenses and other assets (676) (960)
Accounts payable and accrued liabilities 1,717 (1,138)
Accrued royalties 6,531 6,434
Accrued compensation 2,610 3,820
Deferred revenue 4,913 3,293
Reimbursement of cost of leasehold improvements 1,243 375
Net cash provided (used in) by operating activities (7,734) 3,371
Investing Activities    
Purchases of property and equipment (3,887) (5,371)
Purchase of short-term investments (35,093)  
Maturities of short-term investments 48,560  
Net cash provided by (used) in investing activities 9,580 (5,371)
Financing Activities    
Repayments of debt   (7,596)
Proceeds from exercise of preferred stock warrants   165
Proceeds from initial public offering net of offering costs   91,666
Proceeds from issuance of common stock 3,567 654
Payment of dividends to preferred stockholders at initial public offering   (30,630)
Net cash provided by financing activities 3,567 54,259
Net increase in cash and cash equivalents 5,413 52,259
Cash and cash equivalents at beginning of period 44,126 43,048
Cash and cash equivalents at end of period $ 49,539 $ 95,307