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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Operating Activities:    
Net Income (loss) $ (652,945) $ (7,887,874)
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Depreciation and amortization 127,009 198,220
Stock based compensation 20,750 21,346
Realized loss (gain) on sale of assets (836,500) 0
Amortization of financing costs 24,639 10,833
Non-cash interest expense 1,369,304 801,610
Amortization of debt discount 2,556,409 2,450,664
Bad debt expense 472 (8,868)
Write off Enerplex Patents 0 59,153
Warranty reserve (3,043) (9,702)
Change in fair value of derivatives and loss on extinguishment of liabilities, net (4,919,165) 684,866
Changes in operating assets and liabilities:    
Accounts receivable 103,714 (28,458)
Inventories (13,849) 37,604
Prepaid expenses and other current assets (10,051) 14,353
Accounts payable (298,450) 945,703
Related party payable 4,391 (1,266)
Accrued interest 623,896 235,952
Accrued expenses 95,343 295,134
Net cash used in operating activities (1,808,076) (2,180,730)
Investing Activities:    
Proceeds from sale of assets 836,500 0
Patent activity costs (2,721) (9,705)
Net cash used in investing activities 833,779 (9,705)
Financing Activities:    
Proceeds from debt 1,406,768 2,357,500
Repayment of debt (2,500) (230,782)
Payment of debt financing costs (7,500) 0
Net cash provided by financing activities 1,396,768 2,126,718
Net change in cash and cash equivalents 422,471 (63,717)
Cash and cash equivalents at beginning of period 18,159 89,618
Cash and cash equivalents at end of period 440,630 25,901
Supplemental Cash Flow Information:    
Cash paid for interest 25,891 211,166
Cash paid for income taxes 0 0
Non-Cash Transactions:    
Non-cash conversions of preferred stock and convertible notes to equity 907,099 5,140,600
Non-cash financing costs 10,800 25,000
Accounts payable converted to notes payable 0 308,041
Interest converted to principal 171,152 140,355
Common shares issued for fees 8,060 0
Initial embedded derivative liabilities 3,105,812 2,013,601
Promissory notes exchanged for convertible notes $ 550,000 $ 0