Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flow (Unaudited)

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Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash flow from operating activities    
Net loss $ (5,710) $ (2,215)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation expense 290 293
Amortization of intangible assets 269 268
Amortization of lease incentive for tenant improvements 28 10
Non-cash interest expense 936 519
Loss on extinguishment of debt 340
Stock based compensation 34 119
Change in fair value of derivative liabilities (2,020) (2,182)
Gain on disposal of equipment 51 2
Loss on extinguishment of derivative liabilities 1,252
Provision for inventory reserve 400
Offering costs 682 131
Bad debt expense 35
Changes in operating assets and liabilities:    
Trade accounts receivable 1 (354)
Prepaid expenses and other current assets (76) (115)
Inventories (84) 170
Accounts payable and accrued liabilities (1,280) (475)
Net cash used in operating activities (5,934) (3,430)
Cash flows from investing activities    
Purchase of property and equipment (111) (508)
Purchase of intangible asset (50)
Proceeds from sale of property and equipment 4
Net cash used in investing activities (157) (508)
Cash flows from financing activities    
Proceeds from issuance of warrant derivative liabilities, net of issuance costs ($682) 7,577 679
Proceeds from issuance of preferred stock, net of issuance costs ($668) 6,754
Proceeds from issuance of common stock in connection with the exercise of warrants, net of issuance costs 1,633
Proceeds from the issuance of debt 705
Proceeds from the issuance of common stock 3,128
Payments on debt (2,282) (3,324)
Net cash provided by financing activities 14,387 483
Net increase (decrease) in cash and cash equivalents 8,296 (3,455)
Cash and cash equivalents at beginning of period 539 6,915
Cash and cash equivalents at end of period 8,835 3,460
Noncash investing and financing activities    
Debt exchange $ 2,265
Payment of debt with common stock 1,453
Extinguishment of derivative liabilities through exercise of warrants $ 565
Warrants issued in association with debt 98
Supplemental cash flow information    
Cash paid for interest $ 337 $ 219