Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities
Net loss	$ (66,427)	$ (139,805)	$ (8,908)
Adjustments to reconcile net loss to net cash used in operating activities
Impairment of intangible assets	5,758	110,364	0
Impairment of long-lived assets	9,727	0	0
Gain on settlement of Global Cooling escrow	(5,115)	0	0
Depreciation	7,114	6,775	4,663
Amortization of intangible assets	5,181	9,697	8,202
Amortization of loan costs	13	18	121
Stock-based compensation	31,670	25,334	13,956
Non-cash lease expense	404	3,486	2,053
Deferred income tax benefit	(62)	(5,238)	(20,127)
Change in fair value of contingent consideration	(2,193)	(4,754)	2,875
Change in fair value of warrant liability	0	0	121
Change in fair value of investments	0	(697)	0
Accretion of investments	(1,262)	(447)	0
Gain on acquisition of Sexton Biotechnologies, Inc.	0	0	(6,451)
Loss on disposal of assets held for rent, net	594	773	609
Loss on disposal of property and equipment, net	633	745	482
Forgiveness of loans payable	0	0	(284)
Other	0	166	353
Change in operating assets and liabilities, net of effects of acquisitions
Accounts receivable, trade, net	15,351	(10,753)	(10,132)
Inventories	(8,552)	(6,559)	114
Prepaid expenses and other current assets	137	26	2,663
Accounts payable	(8,425)	414	2,018
Accrued expenses and other current liabilities	2,002	1,787	(3,936)
Sales taxes payable	1,311	1,526	1,412
Warranty liability	(454)	(1,086)	5,833
Other	97	(260)	(230)
Net cash used in operating activities	(12,498)	(8,488)	(4,593)
Cash flows from investing activities
Cash acquired in acquisition of Global Cooling, Inc. and Sexton Biotechnologies, Inc.	0	0	1,559
Purchases of property and equipment	(6,381)	(10,385)	(8,385)
Purchases of assets held for rent	(4,856)	(3,536)	(6,371)
Proceeds from sale of equipment	0	0	5
Proceeds from sale of available-for-sale securities	3,469	420	0
Maturities of available-for-sale securities	52,700	8,500	0
Investment in available-for-sale securities	(27,095)	(53,116)	0
Net cash provided by (used in) investing activities	17,837	(58,117)	(13,192)
Cash flows from financing activities
Proceeds from term loan	0	20,000	0
Payments on term loan	(300)	(1,666)	0
Payments on equipment loans	(198)	(498)	(214)
Proceeds from equipment loans	0	0	1,550
Issuance of common stock	10,244	0	0
Fees paid related to issuance of common stock	0	(131)	(145)
Proceeds from line of credit	0	0	27,306
Payments on line of credit	0	0	(31,536)
Proceeds from exercise of common stock options	507	323	1,418
Proceeds from financed insurance premium	2,639	0	0
Payments on financed insurance premium	(2,365)	(1,375)	(1,033)
Other	64	(337)	(124)
Net cash provided by (used in) financing activities	10,591	16,316	(2,778)
Net increase (decrease) in cash, cash equivalents, and restricted cash	15,930	(50,289)	(20,563)
Cash, cash equivalents, and restricted cash – beginning of period	19,473	69,870	90,456
Effects of currency translation on cash, cash equivalents, and restricted cash	35	(108)	(23)
Cash, cash equivalents, and restricted cash – end of period	35,438	19,473	69,870
Non-cash investing and financing activities
Cashless exercise of warrants reclassified from warrant liability to common stock	0	0	2,901
Assets acquired under operating leases	880	243	6,875
Assets acquired under finance leases	1,682	0	440
Purchase of property and equipment not yet paid	359	478	197
Unrealized (gain) loss on available-for-sale securities	(56)	50	0
Unrealized gain on currency translation	(12)	0	0
Returned shares from settlement of Global Cooling escrow	(5,115)	0	0
Cash interest paid	1,927	586	452
Global Cooling, Inc. and Sexton Biotechnologies
Non-cash investing and financing activities
Stock issued as consideration	0	0	264,718
SciSafe
Non-cash investing and financing activities
Stock issued as consideration	$ 2,263	$ 817	$ 0