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Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash flows from operating activities:    
Net loss $ (16,266,820) $ (8,351,651)
Adjustments to reconcile net loss to cash used in operating activities:    
Depreciation and amortization 92,272 143,859
Share-based compensation expenses 584,991 880,789
Change in fair value of liability classified warrants (9,298) (499,138)
Allowance for bad debt 362,176
Warrant inducement expense 5,620,089
Changes in operating assets and liabilities:    
Trade and other receivables (95,215) 272,993
Prepaid expenses (1,024,494) (142,310)
ROU and other assets 24,537 39,643
Accounts payable and accrued expenses (105,043) (15,741)
Accrued severance and bonuses 2,186,555 135,686
Other current liabilities 5,508 (47,414)
Lease and other long term liabilities (38,211) (34,572)
Net cash used in operating activities (9,025,129) (7,255,680)
Cash flows from investing activities:    
Net cash provided by investing activities
Cash flows from financing activities:    
Proceeds from the sale of common stock and warrants, net 11,150,318 6,552,842
Proceeds from warrant exercises 3,547,894 236
Proceeds from short-term notes payable 414,320
Payments of short-term notes payable (232,296) (377,893)
Net cash provided by financing activities 14,465,916 6,589,505
Effects of exchange rates on cash (1,185) (6,018)
Net decrease in cash and cash equivalents 5,439,602 (672,193)
Cash and cash equivalents, beginning of year 5,114,917 5,787,110
Cash and cash equivalents, end of year 10,554,519 5,114,917
Supplemental cash flow information:    
Cash paid for interest $ 14,015 $ 8,920