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Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities    
Net loss $ (10,039) $ (7,471)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 684 481
Interest earned on marketable securities   60
Equity-based compensation 853 525
Changes in operating assets and liabilities:    
Accounts and grants receivable 53 (107)
Prepaid expenses and other current assets (596) (441)
Other assets 2 (11)
Accounts payable 601 (38)
Deferred revenue   (109)
Accrued expenses 232 (547)
Operating lease asset and lease liability (127) (127)
Other liabilities 43 133
Net cash used in operating activities (8,294) (7,652)
Cash flows from investing activities    
Proceeds from the sale of marketable securities   350
Acquisition of property and equipment (188) (212)
Acquisition of intangible assets (225) (177)
Net cash used in investing activities (413) (39)
Cash flows from financing activities    
Proceeds from the issuance of common stock, net of issuance cost   4,722
Proceeds from warrants exercised, net of issuance cost   10,338
Proceeds from stock subscription receivable   100
Payments for taxes on RSUs vested (191) (43)
Net cash (used in) provided by financing activities (191) 15,117
Change in cash and cash equivalents (8,898) 7,426
Cash and cash equivalents at beginning of the period 19,232 4,949
Cash and cash equivalents at end of the period 10,334 12,375
Supplement Disclosure of Non-cash Investing and Financing Activities:    
Vesting of RSUs and PSUs into Class A common stock $ (498) (108)
Deemed dividend – warrant inducement offers   8,501
Offering costs in accrued expenses   $ 86