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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Cash flows from operating activities:              
Net loss $ (3,568,017) $ (3,122,637) $ 582,091 $ (4,657,894) $ (6,690,654) $ (4,075,803)  
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:              
Amortization of debt discount and deferred finance costs         737,330 1,283,691  
Amortization of intangible assets         25,683 163,403  
Stock-based compensation         2,093,552 2,147,591  
Depreciation on development equipment         5,074 18,658  
Change in fair value of derivative (630,174)   (746,809)   (93,829) (10,512)  
Loss on debt conversion         27,504 166,067  
Changes in operating assets and liabilities:              
Prepaid expenses and other current assets         (91,534) 68,920  
Accounts payable and accrued expenses         1,589,592 454,302  
Accounts payable to related party         (68,635) 42,623  
Net cash provided by (used in) operating activities         (2,465,917) 258,940  
Cash flows from financing activities:              
Proceeds from private placement         1,613,200  
Proceeds from sales of common stock         70,108  
Proceeds from convertible debt         200,000    
Proceeds from short term loans, others         744,875  
Repaid to note holder         (100,000)  
Repaid to others         (75,000)  
Proceeds from Payroll Protection Plan         250,000  
Proceeds from short term loan, related party         70,000  
Net cash provided by financing activities         2,453,183 320,000  
Net increase (decrease) in cash         (12,734) 578,940  
Cash and restricted cash - beginning of period   $ 494,019   $ 81,964 494,019 81,964 $ 81,964
Cash and restricted cash - end of period $ 481,285   $ 660,904   481,285 660,904 $ 494,019
Supplemental cash flow information:              
Interest paid          
Non-cash investing and financing activities:              
Warrants issued in connection with private placement         2,190,127  
Common shares issued upon partial conversion of debt         210,301 824,504  
Common shares issued in lieu of services         70,000  
Non-cash cost upon sale of common stock         28,947    
Beneficial Conversion Feature on convertible debt and restricted common shares         $ 605,719