Cash Flow

v3.20.4
Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash flows from operating activities:    
Net loss $ (25,762,000) $ (44,795,000)
Reconciliation of net loss to net cash used in operating activities    
Depreciation 2,231,000 3,899,000
Amortization of intellectual property 180,000 182,000
Accretion of asset retirement obligation 45,000 46,000
Fair value of common stock issued for consulting services 64,000 4,925,000
Stock-based compensation 3,572,000 4,206,000
Warrant expense 0 5,780,000
Amortization of deferred financing costs 607,000 56,000
Non-cash convertible note interest expense 0 2,556,000
Non-cash interest expense 0 95,000
Loss on sale of Ebonex asset 0 90,000
Loss on sale of equipment 90,000 149,000
Impairment of equipment 11,741,000 (0)
Retirement of asset retirement obligation 521,000 0
Changes in operating assets and liabilities    
Accounts receivable 212,000 481,000
Inventory 166,000 (492,000)
Prepaid expenses and other current assets 280,000 (612,000)
Accounts payable (1,999,000) 823,000
Accrued expenses (2,448,000) (2,031,000)
Deferred rent 0 (35,000)
Other assets and liabilities (528,000) (500,000)
Net cash used in operating activities (11,028,000) (25,177,000)
Cash flows from investing activities:    
Purchases of property and equipment (3,363,000) (12,802,000)
Proceeds from sale of equipment 162,000 0
Equipment deposits and other assets (4,000) (272,000)
Insurance proceeds 9,838,000 2,500,000
Net cash provided by (used in) investing activities 6,633,000 (10,574,000)
Cash flows from financing activities:    
Proceeds from issuance of common stock, net of transaction costs 3,676,000 29,380,000
Proceeds from PPP loan 332,000 0
Payments on notes payable (654,000) (295,000)
Payments on convertible note 0 (6,651,000)
Net cash provided by (used in) financing activities 3,354,000 22,434,000
Net decrease in cash, cash equivalents and restricted cash (1,041,000) (13,317,000)
Cash, cash equivalents and restricted cash at beginning of period 7,575,000 20,892,000
Cash, cash equivalents and restricted cash at end of period 6,534,000 7,575,000
Supplemental disclosure of cash flow information:    
Cash paid for interest, net of amounts capitalized 1,044,000 697,000
Cash paid for income taxes 2,000 2,000
Non-cash financing activities    
Fair value of common stock issued to consultants 64,000 4,925,000
Supplemental disclosure of non-cash transactions    
Change in property and equipment resulting from change in accounts payable 1,280,000 (1,921,000)
Change in property and equipment resulting from change in accrued expenses 431,000 (928,000)
Change in equity resulting from change in accrued expenses 24,000 1,300,000
Change in property and equipment resulting from fire damaged assets written off 0 (19,946,000)
Change in insurance proceeds receivable resulting from fire 0 17,446,000
Change in other assets to extinguish notes payable 8,653,000 0
Change in insurance proceeds receivable resulting from insurance funds held in escrow $ 7,938,000 $ 0

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