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Condensed Consolidated Statements of Cash Flows - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flows from operating activities:    
Net loss $ (3,637,549) $ (6,914,752)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation expense 699,219 171,106
Stock-based 401K company common match 35,747 19,967
Depreciation expense 3,133 7,805
Operating lease expense 120,514 41,800
Changes in operating assets and liabilities:    
Prepaid expenses and other assets (687,524) (198,184)
Accounts payable 960,139 (105,193)
Accrued expenses (265,530) 96,718
Restructuring reserve 0 (371,323)
Operating lease liabilities (84,115) (15,649)
Net cash used in operating activities (2,855,966) (7,267,705)
Cash flows from financing activities:    
Proceeds from exercise of warrants 0 70,459
Proceeds from exercise of stock options 220,603 0
Proceeds from issuances of common stock, net of issuance costs 48,544,998 11,970,002
Net cash provided by financing activities 48,765,601 12,040,461
Net increase in cash and cash equivalents 45,909,635 4,772,756
Cash and cash equivalents at beginning of period 28,839,565 12,161,739
Cash and cash equivalents at end of period $ 74,749,200 $ 16,934,495