v3.26.1
Condensed Statements of Cash Flows (unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities    
Net loss $ (39,005) $ (26,420)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization expense 484 659
Noncash lease expense (23) (50)
Stock-based compensation expense 9,721 5,515
Amortization of debt discount and accretion of premium on term loans 150 202
Accretion (amortization) of discount and premium on marketable securities (1,251) (487)
Loss on disposal of property and equipment and recorders 62 50
Changes in operating assets and liabilities:    
Accounts receivable, net (942) (1,434)
Inventory 550 937
Prepaid expenses and other current assets (752) 1,229
Contract costs 321 (351)
Accrued interest on marketable securities 302  
Other non-current assets 11 (226)
Accounts payable 406 1,361
Accrued liabilities and other current liabilities (2,104) (17)
Contract liabilities (90) 96
Net cash used in operating activities (32,160) (18,936)
Cash flows from investing activities    
Purchases of recorder components and recorders (908) (288)
Purchases of property and equipment (142) (219)
Purchases of marketable securities (75,615) (142,794)
Proceeds from maturities of marketable securities 98,500 6,000
Net cash provided by (used in) investing activities 21,835 (137,301)
Cash flows from financing activities    
Proceeds related to employee stock plans 2,512 2,158
Debt issuance cost 0 (150)
Net cash provided by financing activities 2,512 2,008
Net increase (decrease) in cash and cash equivalents (7,813) (154,229)
Cash and cash equivalents, beginning of period 40,476 194,370
Cash and cash equivalents, end of period 32,663 40,141
Supplemental disclosure of cash flow information    
Cash paid for interest 874 950
Property and equipment included in accounts payable and accrued expenses 7 152
Recorder components included in accounts payable and accrued expenses 46 0
Tax withholding related to settlement or vesting of equity awards in accruals $ 0 $ 268