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
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Cash flow from operating activities    
Net loss $ (512) $ (3,388)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation expense 162 389
Amortization of intangible assets 134 125
Amortization of lease incentive for tenant improvements 5 5
Non-cash interest expense 224 405
Stock based compensation 60 88
Change in fair value of derivative liabilities (1,780) 11
Gain on disposal of equipment (4)
Provision for inventory reserve 150 373
Offering costs 131
Changes in operating assets and liabilities:    
Trade accounts receivable (82) 813
Prepaid expenses and other current assets 47 (476)
Inventories 90 263
Accounts payable and accrued liabilities (462) (64)
Net cash used in operating activities (1,833) (1,465)
Cash flows from investing activities    
Purchase of property and equipment (292) (259)
Proceeds from sale of property and equipment 16
Net cash used in investing activities (292) (243)
Cash flows from financing activities    
Proceeds from issuance of common stock, net of issuance costs 3,128
Proceeds from issuance of warrant derivative liability 679
Payments on debt (1,653) (1,834)
Net cash provided by (used in) financing activities 2,154 (1,834)
Net increase (decrease) in cash and cash equivalents 29 (3,542)
Cash and cash equivalents at beginning of period 6,915 11,485
Cash and cash equivalents at end of period 6,944 7,943
Supplemental cash flow information    
Cash paid for interest $ 136 $ 507