CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (8,599)	$ (29,516)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	3,424	1,473
Allowance for doubtful accounts	(55)	259
Depreciation and amortization	3,275	882
Accretion and amortization of term loans discount	308
Remeasurement of derivative liabilities and convertible notes		281
Noncash interest expense		3
Noncash lease expense	171	(11)
Changes in assets and liabilities:
Inventory	(68,276)	(31,317)
Accounts receivable	18,577	(3,358)
Other receivable	941	91
Prepaid expenses and other current assets	5,825	(8,767)
Other assets	(1,863)	3,129
Accounts payable	362	2,678
Customer deposits	(189)	2,916
Accrued liabilities	2,027	13,635
Net cash used in operating activities	(44,072)	(47,622)
Cash flows from investing activities:
Acquisition of property and equipment	(14,227)	(8,977)
Net cash used in investing activities	(14,227)	(8,977)
Cash flows from financing activities:
Proceeds for issuance of term loans, net of discount	29,570
Third-party issuance costs related to term loans	(740)
Proceeds from issuance of common stock on IPO, net of issuance costs		159,899
Proceeds from exercise of stock options	87	150
Proceeds from the issuance of common stock under employee stock purchase plan	300
Net cash provided by financing activities	29,217	160,049
Net increase (decrease) in cash and restricted cash equivalents	(29,082)	103,450
Cash, cash equivalents and restricted cash equivalents, beginning of period	105,982	60,550
Cash, cash equivalents and restricted cash equivalents, end of period	76,900	164,000
Reconciliation to amounts on the condensed balance sheets:
Cash and cash equivalents	74,957	161,662
Restricted cash equivalents	1,943	2,338
Total cash, cash equivalents and restricted cash equivalents	76,900	164,000
Supplemental disclosures of cash flow information
Cash paid for taxes	16	2
Cash paid for interest, net of amounts capitalized	771
Supplemental disclosures of noncash financing and investing activities:
Purchase of property and equipment included in accounts payable and accrued liabilities	4,856	650
Acquisition of right-of-use asset through operating lease obligation	16,460
Issuance of warrants in connection with term loan	494
Vesting of early exercise options	34	40
Stock-based compensation expense capitalized to inventory	$ 913	260
Conversion of redeemable convertible notes payable principal and interest for common stock on IPO		24,982
Conversion of convertible redeemable preferred shares into common stock on IPO		$ 121,080