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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:      
Net loss $ (14,231) $ (18,754) $ (33,694)
Adjustments required to reconcile net loss to net cash used in operating activities:      
Share-based compensation 3,023 3,550 4,328
Depreciation 486 476 482
Decrease in severance pay, net (81) (50) (81)
Loss from property and equipment sales and disposals 0 7 12
Exchange rate differences loss (gain) on cash balances (68) (129) 393
Decrease (increase) in interest receivables from short-term bank deposits and long-term restricted deposit (855) 92 (584)
Amortization of discount and accrued interest on marketable securities (1,575) (280) 0
Decrease (increase) in trade receivables 61,000 (61,000) 0
Decrease (increase) in other accounts receivable and prepaid expenses (213) (112) 3,043
Decrease (increase) in long-term prepaid expenses (655) 666 12
Decrease in operating lease right of use asset 550 568 658
Increase (decrease) in trade payables and employees and related accruals and accrued expenses (4,410) 3,509 (1,601)
Decrease in deferred participation in R&D expenses 0 (325) (6,019)
Increase in deferred revenues 7,136 36,541 0
Decrease in operating lease liability (503) (645) (1,062)
Net cash provided by (used in) operating activities 49,604 (35,886) (34,113)
Cash flows from investing activities:      
Proceeds from maturity of short-term bank deposits 60,717 79,242 114,445
Investment in short-term bank deposits (96,219) (32,100) (76,900)
Proceeds from maturity of marketable securities 53,230 10,145 0
Investment in marketable securities (63,533) (21,605) 0
Investment in long term restricted deposit (330) 0 0
Purchase of property and equipment (118) (172) (477)
Costs of disposal of property and equipment 0 0 (10)
Proceeds from sale of property and equipment 1 0 2
Net cash provided by (used in) investing activities (46,252) 35,510 37,060
Cash flows from financing activities:      
Proceeds from issuance of ordinary shares, net 544 3,081 0
Proceeds from exercise of share-based awards 10 0 353
Net cash provided by financing activities 554 3,081 353
Effect of exchange rate changes on cash 68 129 (393)
Increase in cash, cash equivalents and restricted cash 3,974 2,834 2,907
Cash, cash equivalents and restricted cash at the beginning of the year 14,255 11,421 8,514
Cash, cash equivalents and restricted cash at the end of the year 18,229 14,255 11,421
Supplemental disclosure of non-cash investing and financing activities:      
Purchase of property and equipment 5 (5) (117)
Right-of-use asset obtained in exchange for operating lease liability 2,064 71 237
Reconciliation of cash, cash equivalents and restricted cash:      
Cash and cash equivalents 18,229 13,890 11,059
Restricted cash 0 365 362
Total cash, cash equivalents and restricted cash $ 18,229 $ 14,255 $ 11,421