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Condensed Statements of Cash Flows (unaudited) - USD ($)
 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flows from operating activities:    
Net loss $ (16,824,520) $ (4,448,984)
Adjustments to reconcile net loss to net cash used for operations:    
Depreciation 176,597 191,134
Stock-based compensation 989,415 887,842
Issuance of common stock, licensing agreement 5,000,000 0
Amortization of debt issuance costs and discount 81,571 0
PIK interest 93,397 0
Loss on sale of fixed assets 263 0
Changes in operating assets and liabilities:    
Prepaid assets and deposits 37,496 41,952
Accounts payable 438,018 (59,025)
Accrued expenses (124,940) 26,189
Non-cash operating lease, net (6,550) (28,754)
Net cash used for operating activities (10,139,253) (3,389,646)
Cash flows from investing activities:    
Purchases of property and equipment (57,897) (66,589)
Proceeds from sale of property and equipment 500 0
Net cash used for investing activities (57,397) (66,589)
Cash flows from financing activities:    
Proceeds from exercise of common stock warrants 11,257 0
Proceeds from exercise of employee stock options 36,859 0
Proceeds from employee stock purchases 25,817 23,897
Proceeds from follow-on offering, net of underwriting discounts and offering costs 25,768,493 0
Proceeds from note payable, net of debt issuance costs and discount of $652,061 14,347,939 0
Gross proceeds from an ATM offering 38,962 154,142
Payments for secondary registration statement costs (29,065) (23,367)
Payments for finance leases (2,900) (2,880)
Net cash provided by financing activities 40,197,362 151,792
Net change in cash and cash equivalents 30,000,712 (3,304,443)
Cash and cash equivalents:    
Beginning of period 11,637,911 18,735,002
End of period 41,638,623 15,430,559
Supplemental disclosures of non-cash investing and financing activities:    
Offering and registration statement costs included in accounts payable and accrued expenses 96,111 0
Issuance of common stock warrants and final fee recognized as discount to note payable $ 964,839 $ 0