Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Cash Flows

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Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities    
Net loss $ (10,849,034) $ (7,366,310)
Adjustments to reconcile net loss to net cash used in operating activities:    
Accrued income on marketable securities (11,011) (1,412)
Depreciation and amortization 234,486 249,894
Disposal of property and equipment (net) 156,493
Impairment of intangible assets 716,148
Impairment of other assets 64,092
Reserve for obsolete inventory 279,029 1,208,522
Reserve for doubtful accounts 156,835 450,000
Expenses related to modification of warrants 764,932
Amortization of deferred compensation 3,469 21,103
Share based compensation to employees - options 6,931 17,274
Share based compensation to employees 27,702 95,770
Share based compensation to officers 163,924
Share based compensation to non-employees - options 2,183
Share based compensation to non-employees 12,545 5,455
Changes in assets and liabilities:    
(Increase)/decrease in trade receivables 631,510 (781,508)
Decrease in deposits and other receivables 7,243 7,192
(Increase)/decrease in inventories 83,316 (119,613)
(Increase)/decrease in prepaid expenses (225,586) 123,855
Increase in other assets (9,280)
Increase in trade and other payables 188,462 87,607
Net cash used in operating activities (8,517,370) (5,080,412)
Cash flows from investing activities    
Purchases of property, plant and equipment (68,214) (54,507)
Purchases of marketable securities (6,589,623) (7,709,341)
Proceeds from sale of marketable securities 6,313,330 2,749,147
Net cash consumed by investing activities (344,507) (5,014,701)
Cash flows from financing activities    
Net proceeds from issuance of common stock 1,950,000 5,803,897
Proceeds from issuance of preferred stock 3,675,000
Net proceeds from exercise of warrants for common stock 7,155,200 981,948
Net cash provided by financing activities 9,105,200 10,460,845
Net increase in cash and restricted cash 243,323 365,732
Cash and restricted cash at beginning of year 438,432 72,700
Cash and restricted cash at end of year 681,755 438,432
Cash paid for:    
Interest
Income Taxes 2,070 1,706
Supplemental Schedule of Non-Cash Financing and Investing Activities    
Net unrealized gains/(losses) on marketable securities (25,913)
Conversion of Series B Preferred Stock to common shares $ 1,755,000