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 ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Cash flows from operating activities:      
Net loss $ (3,538,536) $ (916,958) $ (3,888,249)
Adjustments to reconcile net loss to net cash used in operating activities:      
Loss on sale of securities 36,714  
Accrued (income)/loss on marketable securities (4,713) 2,314  
Depreciation and amortization 15,770 15,437  
Impairment of intangible assets 2,952  
Reserve for obsolete inventory 3,830  
Reserve for doubtful trade receivables 4,247  
Share based compensation to an employee - common stock 11,636  
Share based compensation to directors - restricted stock units 1,302 3,906  
Share based compensation - shares issued to vendors 7,318  
Shares issued for the purchase of license 1,233,057  
Change in assets and liabilities      
Increase in trade receivables (278,745) (152,445)  
Decrease in deposits and other receivables 0 9,347  
(Increase)/Decrease in inventories 1,710 (16,033)  
Decrease in prepaid expenses 47,112 182,655  
Increase in trade and other payables 504,118 107,159  
Increase in operating lease liability 1,128  
Net cash used by operating activities (1,966,983) (748,735)  
Cash flows from investing activities:      
Purchases of marketable securities (41,989) (30,018)  
Proceeds from sale of marketable securities 2,303,890 852,520  
Net cash provided by investing activities 2,261,901 822,502  
Cash flows from financing activities      
Net proceeds from the exercise of prepaid equity forward contracts for the purchase of common stock 77  
Net cash provided by financing activities 77  
Net increase in cash and restricted cash 294,996 73,767  
Cash and restricted cash at beginning of period 632,538 681,755 681,755
Cash and restricted cash at end of period 927,534 755,522 $ 632,538
Cash paid for:      
Interest  
Income Taxes  
Supplemental Schedule of Non-Cash Financing and Investing Activities      
Net unrealized gains/(losses) on marketable securities (240,937) 29,343  
Operating lease right-of-use asset obtained in exchange for lease obligation $ 306,706