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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 income (loss) $ 1,069 $ (11,111)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock option compensation expense 6,863 2,945
Depreciation expense 43 29
Warrant liability fair value adjustment 0 612
Amortization of Right-of-Use Asset 24 13
Amortization of debt discount 0 261
Interest expense accrued related to convertible notes 0 40
Amortization of premiums and discounts on marketable securities (306) (229)
Changes in operating assets and liabilities:    
Prepaid expenses and other assets (1,421) (174)
Accounts receivable (3,052) (1,323)
Inventory (199) (312)
Accounts payable and accrued expenses (925) (507)
Other liabilities, non-current 107 172
Net cash provided by (used in) operating activities 2,203 (9,584)
Cash flows from investing activities:    
Purchase of investment (30,060) (10,327)
Maturities of investments 5,052 15,000
Purchase of property, plant and equipment (140) (13)
Net cash (used in) provided by investing activities (25,148) 4,660
Cash flows from financing activities:    
Net proceeds from private placement 0 7,000
Proceeds from the issuance of common stock relating to the employee stock purchase plan 238 75
Repayment of debt 0 (3,054)
Proceeds from exercise of warrants 2,385 0
Proceeds from exercise of stock options 630 0
Net cash provided by financing activities 3,253 4,021
Foreign currency effects on cash 56 17
Net decrease in total cash (19,636) (886)
Total Cash, Cash Equivalents and Restricted Cash:    
Beginning of period 32,412 12,696
End of period 12,776 11,810
Cash, Cash Equivalents and Restricted Cash consisted of the following:    
Cash and Cash Equivalents 12,776 11,760
Restricted Cash 0 50
Total 12,776 11,810
Cash paid during the periods for:    
Interest expense 0 250
Supplemental Disclosure of Non-Cash Investing and Financing Activities:    
Right of use assets obtained in exchange for lease obligations $ 0 $ 1,029