Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net loss	$ (5,134)	$ (1,211)	$ (9,220)	$ (2,743)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation			194	54
Non-cash lease (expense)			63	(26)
Share-based compensation			5,211	4,156
Gain on debt extinguishment		(2,183)		(2,183)
Non-cash interest				25
Changes in operating assets and liabilities:
Accounts receivable			1,658	(1,137)
Inventories			(3,353)	(851)
Prepaid expenses and other current assets			1,365	(931)
Compensating cash arrangement				(1)
Other assets			60	25
Accounts payable			1,037	(484)
Accrued liabilities			(403)	(352)
Deferred revenue			75	4,102
Other liabilities			(17)	75
Net cash used in operating activities			(3,330)	(271)
Cash flows from investing activities
Purchase of property and equipment			(1,804)	(150)
Net cash used in investing activities			(1,804)	(150)
Cash flows from financing activities
Proceeds from issuance of stock, net of issuance costs			111	402
Net cash provided by financing activities			111	402
Net decrease in cash, cash equivalents, and restricted cash			(5,023)	(19)
Cash, cash equivalents, and restricted cash at beginning of period			40,145	43,940
Cash, cash equivalents, and restricted cash at end of period	35,122	43,921	35,122	43,921
Supplemental disclosure of cash flow information:
Purchase of property and equipment included in accounts payable			116
Reconciliation of cash, cash equivalents, and restricted cash to balance sheet as of June 30th:
Cash and cash equivalents	33,498	42,054	33,498	42,054
Restricted cash - current	618	1,484	618	1,484
Restricted cash	1,006	383	1,006	383
Total cash, cash equivalents, and restricted cash	$ 35,122	$ 43,921	$ 35,122	$ 43,921