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
 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Cash flows used in operating activities:    
Net loss $ (10,429) $ (23,525)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 231 418
Common stock contribution to 401(k) 506 785
Stock-based compensation expense 2,855 4,471
Revaluation of contingent warrant liabilities   (10,195)
Amortization of debt issuance costs, debt discount and final payment fee on debt 405 716
Loss on extinguishment of debt 515  
Gain on sale and disposal of equipment (1,226)  
Unrealized loss on foreign currency exchange 1,199 249
Other 57 46
Changes in assets and liabilities:    
Trade and other receivables, net (10,065) 3,110
Prepaid expenses and other current assets 275 881
Accounts payable and accrued liabilities (4,387) (2,629)
Accrued restructuring costs (2,574) (441)
Accrued interest on interest bearing obligations 102 153
Deferred revenue (219) (2,181)
Other liabilities   (500)
Net cash used in operating activities (22,755) (28,642)
Cash flows from investing activities:    
Proceeds from sale of equipment 1,614 45
Purchase of property and equipment   (31)
Net cash provided by investing activities 1,614 14
Cash flows from financing activities:    
Proceeds from issuance of common and preferred stock, net of issuance costs 25,472 45
Principal payments ─ debt (16,380) (3,271)
Payment of final fee related to loan extinguishment (1,150)  
Principal payments ─ capital lease (51) (57)
Net cash provided by (used in) financing activities 7,891 (3,283)
Effect of exchange rate changes on cash (27) (2)
Net decrease in cash and cash equivalents (13,277) (31,913)
Cash and cash equivalents at the beginning of the period 25,742 [1] 65,767
Cash and cash equivalents at the end of the period 12,465 33,854
Supplemental cash flow information:    
Cash paid for interest 396 1,127
Non-cash investing and financing activities:    
Interest added to principal balance on long-term debt $ 236 $ 194
[1] The condensed consolidated balance sheet as of December 31, 2016 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, 2016.