CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (30,659)	$ (22,055)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	477	761
Amortization intangible assets	332	265
Amortization of right-of-use lease assets	552	477
Stock-based compensation	3,348	907
Change in fair value of warrant liabilities		17
Amortization of debt issuance costs	226	446
Change in fair value of forward obligation		150
Change in fair value of contingent earnout		7
Changes in operating assets and liabilities:
Accounts receivable, net	(732)	(346)
Inventory	(4,503)	(1,489)
Prepaid expenses and other assets	(458)	66
Accounts payable	(623)	(839)
Accrued expenses and other liabilities	642	(1,363)
Deferred revenue	(149)	(141)
Accrued compensation	44	(714)
Net cash used in operating activities	(31,503)	(23,865)
Cash flows from investing activities:
Purchases of short-term investments	(34,255)
Purchases of property and equipment	(794)	(230)
Acquisition of intangible assets		(1,297)
Net cash used in investing activities	(35,049)	(1,527)
Financing activities:
Payment of common stock issuance costs	(598)
Issuance of stock under employee stock plans	250	89
Payment of contingent earnout	(117)	(667)
Principal repayments on finance lease	(26)	(23)
Net cash used in financing activities	(491)	(601)
Net decrease in cash and cash equivalents	(67,043)	(25,993)
Cash and cash equivalents at beginning of period	84,641	51,722
Cash and cash equivalents at end of period	17,598	25,729
Cash paid for:
Interest	1,706	1,709
Supplemental schedule of non-cash investing and financing activities:
Operating lease right-of-use assets obtained in exchange for lease liabilities	$ 223	$ 283