Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net loss	$ (61,198)	$ (57,671)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation	2,405	2,481
Amortization of intangible assets	340	7,601
Amortization of discounts and premiums on investments, net	(454)	556
Stock-based compensation	5,913	6,361
Deferred tax expense	136	224
Bad debt expense		9
Change in inventory reserves	297	386
Property and equipment impairment	0	432
Loss on disposal of property and equipment		97
Change in fair value of warrant liabilities	(2,278)	(0)
Change in fair value of contingent consideration	674	(1,168)
Changes in operating assets and liabilities:
Accounts receivable	1,587	(1,735)
Inventory	536	(535)
Operating lease right-of-use assets	(142)	237
Prepaid expenses	(590)	(693)
Employee retention tax credit receivable	554	164
Other current and long-term assets	310	(2,123)
Accounts payable	1,236	449
Accrued employee compensation and benefits	566	236
Accrued expenses and other current liabilities	(97)	0
Deferred revenue	(5)	(139)
Operating lease liabilities	(43)	(53)
Net cash and cash equivalents used in operating activities	(50,253)	(44,884)
Cash Flows from Investing Activities:
Purchase of available-for-sale investments	(12,268)	(25,588)
Proceeds from maturities of available-for-sale investments	69,835	67,702
Purchase of property and equipment	(488)	(904)
Net cash and cash equivalents provided by investing activities	57,079	41,210
Cash Flows from Financing Activities:
Proceeds from issuance of common stock and warrants, net of issuance costs	9,946	0
Taxes paid related to net share settlement of vesting of restricted stock units	(497)	(350)
Proceeds from exercise of stock options	5	18
Net cash and cash equivalents provided by (used in) financing activities	9,454	(332)
Effect of exchange rate changes on cash and cash equivalents	(466)	(300)
Net increase (decrease) in cash, cash equivalents and restricted cash	15,814	(4,306)
Cash, cash equivalents and restricted cash, beginning of period	7,470	19,283
Cash, cash equivalents and restricted cash, end of period	23,284	14,977
Supplemental Disclosure for Cash Flow Information
Cash paid for leases	1,067	729
Cash paid for taxes	230	79
Supplemental Schedule of Non-cash Investing and Financing Activities:
Transfer of inventory to property and equipment	2,227	1,293
Lease liabilities arising from obtaining right-of-use assets	$ 796	$ 316