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Condensed Consolidated Statements of Cash Flows - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Cash flows from operating activities:    
Net loss $ (10,598,515) $ (10,820,574)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation expense 2,400,980 300,898
Stock-based 401K company common match 35,747 19,967
Depreciation expense 4,406 11,706
Operating lease expense 180,775 106,949
Changes in operating assets and liabilities:    
Prepaid expenses and other assets (99,145) 1,935,067
Accounts payable 30,361 361,871
Accrued expenses 188,524 125,133
Restructuring reserve 0 (498,185)
Operating lease liabilities (127,804) (62,597)
Net cash used in operating activities (7,984,671) (8,519,765)
Cash flows from financing activities:    
Proceeds from exercise of warrants 0 70,459
Proceeds from exercise of stock options 344,112 0
Proceeds from issuances of common stock, net of issuance costs 48,544,998 29,756,502
Net cash provided by financing activities 48,889,110 29,826,961
Net increase in cash and cash equivalents 40,904,439 21,307,196
Cash and cash equivalents at beginning of period 28,839,565 12,161,739
Cash and cash equivalents at end of period $ 69,744,004 $ 33,468,935