Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net loss	$ (15,142)	$ (359)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Stock-based compensation	4,043	1,846
Depreciation and amortization	427	361
Amortization of contract acquisition costs	652	545
Amortization of debt issuance costs	219	52
Impairment of capitalized cloud computing costs	0	182
Change in deferred tax asset	41	45
Provision for excess and obsolete inventories	358	193
Provision for credit losses	192	218
Loss (gain) on sale of property and equipment	14	(59)
Change in right-of-use assets	638	604
Changes in assets and liabilities:
Accounts receivable	(1,912)	(2,407)
Inventories	(12,535)	(6,214)
Other current assets and prepaid expenses	(5,611)	(1,560)
Other long-term assets	(385)	(500)
Accounts payable	5,755	(1,653)
Accrued liabilities	(5,989)	10,022
Operating lease liabilities	(608)	(563)
Deferred revenue	239	500
Net cash (used in) provided by operating activities	(29,604)	1,253
Cash flows from investing activities:
Acquisition of property, equipment, and software	(321)	(101)
Proceeds from disposal of property and equipment	0	52
Purchase of marketable investments	(74,058)	0
Net cash used in investing activities	(74,379)	(49)
Cash flows from financing activities:
Proceeds from exercise of stock options and employee stock purchase plan	151	396
Purchase of capped call	0	(16,134)
Proceeds from issuance of convertible notes	0	138,250
Payment of issuance costs of convertible notes	0	(4,717)
Taxes paid related to net share settlement of equity awards	(2,450)	(999)
Payments on finance lease obligations	(150)	(115)
Net cash (used in) provided by financing activities	(2,449)	116,681
Net (decrease) increase in cash, cash equivalents and restricted cash	(106,432)	117,885
Cash, cash equivalents, and restricted cash at beginning of period	164,864	47,047
Cash, cash equivalents, and restricted cash at end of period	58,432	164,932
Supplemental disclosure of non-cash items:
Assets acquired under finance lease	57	25
Assets acquired under operating lease	320	123
Debt issuance costs accrued	0	452
Supplemental disclosure of cash flow information:
Cash paid for interest	1,577	14
Income tax paid	$ 1,100	$ 458