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Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Cash flows from operating activities:    
Net loss $ (12,071,573) $ (17,122,327)
Adjustment to reconcile net loss to net cash used in operating activities:    
Stock based compensation 1,577,540 2,372,783
Interest accrued on note receivable (54,441)
Change in fair value of note receivable 37,416
Write-off of construction-in-process 747,348
Depreciation and amortization 246,695 166,174
Changes in operating assets and liabilities:    
Receivable due from collaboration agreement (184,272)
Research and development tax incentive receivable (122,269) (78,257)
Prepaid assets and other current assets 767,746 939,995
Accounts payable 88,507 1,856,851
Accrued compensation (4,430) (416,910)
Deferred revenue 218,000
Operating lease obligation (36,453) (12,783)
Net cash used in operating activities (8,823,914) (12,260,746)
Cash flows from investing activities:    
Purchases of property and equipment (35,709) (632,684)
Net cash used in investing activities (35,709) (632,684)
Cash flows from financing activities:    
Payment of offering costs in connection with ATM (77,149) (26,180)
Proceeds from issuance of common stock for stock option exercises 10,185
Net cash used in financing activities (77,149) (15,995)
Effect of exchange rate changes on cash and cash equivalents (12,575) 5,006
Net change in cash and cash equivalents (8,949,347) (12,904,419)
Cash and cash equivalents at beginning of period 16,612,315 33,794,672
Cash and cash equivalents at end of period 7,662,968 20,890,253
Supplemental disclosure of non-cash investing and financing activities:    
Purchases of equipment included in accounts payable 133,209
ROU asset obtained for new operating lease $ 238,021