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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Cash flows from operating activities:    
Net loss $ (11,150,230) $ (16,517,269)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 108,482 81,371
Amortization of right-of-use assets 272,675 260,583
Recognition of deferred revenue (250,000)
Realized and unrealized gains (losses), net, on investment securities 135,551 (62,060)
Stock-based compensation 529,027 1,486,522
Realization of deferred income tax asset 1,567,026 1,383,446
Loss on extinguishment of debt 329,158
Amortization of deferred finance charges and debt discount associated with notes payable 55,122 90,630
Net changes in:    
Accrued interest receivable on investment securities 48,443 79,116
Advances, deposits, and other current assets 138,352 (195,429)
Accounts payable and accrued liabilities (2,811,064) 193,984
Net cash used in operating activities (10,777,458) (13,449,106)
Cash flows from investing activities:    
Purchases of investment securities (3,645,540) (8,343,385)
Proceeds from sale and maturity of investment securities 7,500,000 22,775,000
Purchases of property and equipment (211,412) (166,022)
Net cash provided by investing activities 3,643,048 14,265,593
Cash flows from financing activities:    
Proceeds from redeemable convertible preferred stock offering 28,500,000
Payment upon redemption of redeemable convertible preferred stock (28,500,000)
Proceeds from sale of common stock equity, net of issuance costs 2,672,926 6,339,369
Payoff of the SVB loan and accrued end-of-term fees (6,420,000)
Net cash (used in) provided by financing activities (3,747,074) 6,339,369
Net change in cash, cash equivalents and restricted cash (10,881,484) 7,155,856
Cash, cash equivalents and restricted cash at beginning of period 17,492,841 25,586,272
Cash, cash equivalents and restricted cash at end of period 6,611,357 32,742,128
Supplemental disclosures of cash flow information:    
Interest paid (179,542) (4,267,107)
Recognition of right of use asset and liability 1,405,310
Cash paid for amounts included in measurement of lease liabilities:    
Operating cash flows for lease payments $ 340,457 $ 299,947