v3.25.1
Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities:    
Net loss $ (8,547) $ (22,452)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation 825 2,162
Depreciation expense 128 136
Net amortization of premium on short-term investments   (933)
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets 278 (257)
Operating lease right-of-use assets 782 (824)
Other assets   568
Accounts payable (454) (560)
Accrued expenses and other current liabilities (339) 827
Restructuring liability (308)  
Operating lease liabilities (1,024) (590)
Deferred revenue (183) (532)
Net cash used in operating activities (8,842) (22,455)
Cash flows from investing activities:    
Purchases of property and equipment   (2,149)
Purchases of short-term investments   (20,525)
Maturity of short-term investments   30,531
Net cash provided by investing activities   7,857
Cash flows from financing activities:    
Proceeds from sale of common stock, purchase warrants and pre-funded warrants   8,810
Payment of deferred offering costs   (169)
Proceeds from exercise of stock options   3
Net cash provided by financing activities   8,644
Net decrease in cash, cash equivalents and restricted cash (8,842) (5,954)
Cash, cash equivalents and restricted cash, beginning of period 42,570 23,745
Cash, cash equivalents and restricted cash, end of period $ 33,728 17,791
Supplemental disclosure of non-cash financing and investing activities:    
Property and equipment purchases included in accounts payable   350
Right of Use Asset in Exchange for Lease Liability   13,667
Prepaid expenses for right-of-use asset included in operating lease liabilities   688
Deferred offering costs included in accounts payable and accrued expenses   $ 121