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
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Cash flows from operating activities:    
Net loss $ (24,887) $ (30,425)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 780 1,265
Common stock contribution to 401(k) 828 1,134
Stock-based compensation expense 1,619 674
Accrued interest on interest bearing obligations 1,542 394
Revaluation of contingent warrant liabilities 12,840 14,357
Restructuring charge related to long-lived assets 0 1,707
Amortization of debt discount, final payment fee on debt, and debt issuance costs 603 467
Unrealized (gain) loss on foreign currency exchange (440) 376
Unrealized loss (gain) on foreign exchange options 189 276
Other non-cash adjustments (4) (43)
Changes in assets and liabilities:    
Trade and other receivables, net 1,997 2,168
Prepaid expenses and other assets (802) (1,651)
Accounts payable and accrued liabilities (7,128) (3,221)
Deferred revenue (111) 884
Other liabilities (1,554) (37)
Net cash used in operating activities (14,528) (11,675)
Cash flows from investing activities:    
Proceeds from maturities of investments 20,000 0
Net purchase of property and equipment (498) (548)
Net cash provided by (used in) investing activities 19,502 (548)
Cash flows from financing activities:    
Proceeds from issuance of common stock, net of issuance costs 60 39,480
Principal payments of debt 0 (714)
Net cash provided by financing activities 60 38,766
Net increase in cash and cash equivalents 5,034 26,543
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 50,379 74,887
Cash paid for:    
Interest 333 195
Non-cash investing and financing activities:    
Issuance of warrants 0 6,386
Interest added to principal balances on long-term debt $ 290 $ 398
[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.