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, 2016
Jun. 30, 2015
Cash flows from operating activities:    
Net loss $ (9,422) $ (5,530)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 45 36
Stock-based compensation 390 90
Fair value of warrants issued 162 380
Non-cash interest expense 387 102
Changes in assets and liabilities:    
Accounts receivable 4 6
Inventory 679 (226)
Prepaid expenses and other current assets 24 (898)
Other noncurrent assets (1) 3
Accounts payable 422 196
Accrued liabilities 1,009 769
Net cash used in operating activities (6,301) (5,072)
Cash flows from investing activities:    
Proceeds from sale of property and equipment 1
Purchase of property and equipment (138) (1)
Net cash used in investing activities (137) (1)
Cash flows from financing activities:    
Proceeds from sale of common stock, net of issuance costs 13,857 11,040
Proceeds from note payable 9,944 1,500
Repayments of note payable (4,833)  
Proceeds from exercise of warrant 27  
Proceeds from exercise of stock options 14  
Net cash provided by financing activities 19,009 12,540
Net increase in cash and cash equivalents 12,571 7,467
Cash and cash equivalents - beginning of period 7,360 [1] 895
Cash and cash equivalents - end of period 19,931 8,362
Supplemental disclosure:    
Cash paid for interest 487 85
Cash paid for income taxes 1 1
Supplemental disclosure of cash flow information as of end of period:    
Issuance of warrant in connection with note payable 350 10
Restricted stock awards granted to employees for 2015 accrued bonuses 246
Net transfer of equipment between inventory and property and equipment $ 25 $ 20
[1] The condensed consolidated balance sheet as of December 31, 2015 has been derived from the audited consolidated financial statements as of that date.