Condensed Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net loss	$ (1,166)	$ (202)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	846	398
Stock-based compensation	1,577	1,714
Changes in operating assets and liabilities:
Accounts receivable	(843)	(1,524)
Inventory	(1,881)	338
Prepaid expenses and other current assets	235	538
Other assets	(56)
Accounts payable	1,066	(36)
Accrued liabilities	(103)	(2,266)
Deferred revenue	1,062	(255)
Contract obligations	564
Lease liabilities, net	15	2
Long-term income tax liability	124
Net cash provided by (used in) operating activities	1,440	(1,293)
Cash flows from investing activities
Purchases of property and equipment	(913)	(1,205)
Purchase of intangible assets	(478)
Net cash used in investing activities	(1,391)	(1,205)
Cash flows from financing activities
Proceeds from exercise of stock options and purchase of shares in employee stock purchase plan	29	353
Payments on finance leases	(17)
Net cash provided by financing activities	12	353
Net increase (decrease) in cash and cash equivalents	61	(2,145)
Cash and cash equivalents at beginning of period	42,097	36,946
Cash and cash equivalents at end of period	42,158	34,801
Supplementary cash flow information:
Operating cash flows paid for operating leases	353	349
Financing cash flows paid for finance leases	17	8
Non-cash investing and financing activities:
Right-of-use assets obtained in exchange for operating lease liabilities		$ 297
Purchases of property and equipment in accounts payable and accrued liabilities	$ 230