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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net income (loss) $ 424 $ (11,431)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:    
Depreciation and amortization 681 642
Provision to write down inventories to net realizable value 125 98
Non-cash interest expense 39 4,470
Stock-based compensation 2,987 3,876
Change in allowance for credit losses 1,405 (125)
Non-cash lease expense 410 508
Accretion of interest on marketable securities   (253)
Loss on disposal of property and equipment   11
Gain on sale of intangible assets (355)  
Payment of transaction costs related to sale of intangible assets (2,395)  
Deferred income tax (benefit) expense (3,367) (6)
Changes in operating assets and liabilities:    
Accounts receivable (1,094) (2,294)
Inventory 10,600 2,972
Prepaid expenses and other assets 1,684 450
Accounts payable (17,966) 6,149
Accrued expenses and other liabilities (2,494) (538)
Deferred revenue (508) 453
Warranty liability (23) 2,329
Operating lease liabilities (403) (341)
Other long-term liabilities (42) 272
Net cash (used in) provided by operating activities (10,292) 7,242
Cash flows from investing activities:    
Purchase of marketable securities   (19,025)
Purchase of property and equipment (500) (243)
Sales and maturities of marketable securities   9,625
Proceeds from sale of intangible assets 2,750  
Net cash provided by (used in) investing activities 2,250 (9,643)
Cash flows from financing activities:    
Proceeds from exercise of stock options 343 97
Proceeds from issuance of common stock 14,250 773
Proceeds from borrowings under revolving credit facility 4,146  
Payment of debt issuance costs (465)  
Payment of registered direct offering costs (208)  
Payment of tax withholdings on restricted and performance stock awards (750) (3)
Payment of tax withholdings on options exercised (30)  
Net cash provided by financing activities 17,286 867
Net increase (decrease) in cash and cash equivalents 9,244 (1,534)
Cash and cash equivalents at beginning of period 7,670 11,746
Cash and cash equivalents at end of period 16,914 10,212
Supplemental disclosure of cash flow information:    
Cash paid for interest 17 1,267
Cash paid for income taxes, net 146 44
Supplemental schedule of non-cash investing and financing activities:    
Operating lease right of use assets obtained in exchange for operating lease liabilities 65 1,633
Property and equipment in accounts payable $ 238  
Unrealized loss resulting from change in fair value of marketable securities   $ (5)