Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash flows from operating activities:    
Net loss $ (42,135) $ (46,580)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 1,413 2,419
Common stock contribution to 401(k) 828 1,134
Stock-based compensation expense 2,719 1,246
Accrued interest on interest bearing obligations 1,757 611
Revaluation of contingent warrant liabilities 14,621 16,538
Restructuring charge related to long-lived assets 0 2,081
Amortization of debt discount, final payment fee on debt, and debt issuance costs 1,214 939
Loss on sale costs and retirement of property & equipment 281 0
Unrealized gain on foreign currency exchange (228) (383)
Unrealized loss (gain) on foreign exchange options 189 611
Other non-cash adjustments (22) 9
Changes in assets and liabilities:    
Trade and other receivables, net 974 5,851
Prepaid expenses and other assets (880) 706
Accounts payable and accrued liabilities (4,128) (1,594)
Deferred revenue (713) (1,793)
Other liabilities (1,662) (62)
Net cash used in operating activities (25,772) (18,267)
Cash flows from investing activities:    
Purchase of investments 0 (11,990)
Proceeds from maturities of investments 40,000 0
Net purchase of property and equipment (859) (1,121)
Net cash provided by (used in) investing activities 39,141 (13,111)
Cash flows from financing activities:    
Proceeds from issuance of common stock, net of issuance costs 262 39,426
Principal payments of debt (1,042) (1,428)
Payment of issuance costs on long-term debt 0 (47)
Net cash (used in) provided by financing activities (780) 37,951
Net increase in cash and cash equivalents 12,589 6,573
Cash and cash equivalents at the beginning of the period 45,345 [1] 48,344
Cash and cash equivalents at the end of the period 57,934  
Cash paid for:    
Interest 679 466
Non-cash investing and financing activities:    
Issuance of warrants 0 6,376
Interest added to principal balances on long-term debt $ 473 $ 598
[1] The condensed consolidated balance sheet as of December 31, 2012 has been derived from the audited consolidated financial statements as of that date included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012.