Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities
Net (loss) income	$ (7,635,000)	$ 2,667,000	$ (1,657,000)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities
Depreciation	4,663,000	2,035,000	718,000
Amortization of intangible assets	8,202,000	3,033,000	1,079,000
Amortization of loan costs	121,000	0	0
Stock-based compensation	13,956,000	5,981,000	3,043,000
Non-cash lease expense	2,053,000	737,000	512,000
Gain on acquisition of SAVSU	(6,451,000)	0	0
Deferred income tax benefit	(20,127,000)	(3,297,000)	(1,541,000)
Change in fair value of contingent consideration	2,875,000	1,575,000	50,000
Change in fair value of warrant liability	121,000	(3,601,000)	12,835,000
Change in fair value of investments	0	(1,319,000)	0
Stock issued for services	0	60,000	0
Loss on disposal of assets held for rent, net	609,000	365,000	0
Loss on disposal of property and equipment, net	482,000	0	0
Forgiveness of loans payable	(284,000)	0	0
Other	353,000	190,000	15,000
Change in operating assets and liabilities, net of effects of acquisitions
Accounts receivable, trade, net	(10,132,000)	(1,786,000)	(290,000)
Inventories	114,000	(629,000)	(3,777,000)
Prepaid expenses and other current assets	2,802,000	25,000	(704,000)
Accounts payable	2,018,000	(171,000)	768,000
Accrued expenses and other current liabilities	(3,936,000)	780,000	(327,000)
Warranty liability	5,833,000	0	0
Other	(230,000)	0	(142,000)
Net cash (used in) provided by operating activities	(4,593,000)	6,645,000	1,213,000
Cash flows from investing activities
Purchases of property and equipment	(8,385,000)	(1,961,000)	(675,000)
Deposits on property and equipment	0	(2,672,000)	0
Purchases of assets held for rent	(6,371,000)	(2,813,000)	(1,655,000)
Deposits on assets held for rent	0	(362,000)	0
Proceeds from sale of equipment	5,000	35,000	0
Net cash used in investing activities	(13,192,000)	(24,715,000)	(27,018,000)
Cash flows from financing activities
Payments of contingent consideration	0	(483,000)	0
Proceeds from sale of common stock, net of $6.2 million of costs in 2020	0	100,121,000	0
Fees paid related to issuance of common stock	(145,000)	(6,200,000)
Proceeds from line of credit	27,306,000	0	0
Payments on line of credit	(31,536,000)	0	0
Proceeds from exercise of common stock options	1,418,000	1,472,000	1,181,000
Proceeds from exercise of warrants	0	40,000	574,000
Other	(124,000)	(56,000)	(159,000)
Net cash (used in) provided by financing activities	(2,778,000)	102,078,000	1,596,000
Net (decrease) increase in cash, cash equivalents, and restricted cash	(20,563,000)	84,008,000	(24,209,000)
Cash, cash equivalents, and restricted cash – beginning of period	90,456,000	6,448,000	30,657,000
Effects of currency translation on cash, cash equivalents, and restricted cash	(23,000)	0	0
Cash, cash equivalents, and restricted cash – end of period	69,870,000	90,456,000	6,448,000
Non-cash investing and financing activities
Cashless exercise of warrants reclassified from warrant liability to common stock	2,901,000	33,111,000	0
Stock issued as consideration to acquire Global Cooling, Inc. and Sexton Biotechnologies, Inc.	264,718,000	0	0
Equipment acquired under operating leases	6,875,000	8,096,000	0
Equipment acquired under finance leases	440,000	0	0
Purchase of property and equipment not yet paid	197,000	0	29,000
Reclassification of warrant liabilities to equity upon exercise	0	110,000	1,749,000
Cash interest paid	452,000	0	0
Bonus Consideration [Member]
Non-cash investing and financing activities
Stock issued as bonus consideration	0	314,000	0
Paycheck Protection Program CARES Act [Member]
Cash flows from financing activities
Proceeds from Loan	0	2,175,000	0
Payoff of PPP Loan	0	(2,175,000)	0
Equipment Loans [Member]
Cash flows from financing activities
Proceeds from Loan	1,550,000	984,000	0
Payoff of PPP Loan	(214,000)	0	0
Financed Insurance Premium [Member]
Cash flows from financing activities
Payments on financed insurance premium	(1,033,000)	0	0
SAVSU [Member]
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities
Gain on acquisition of SAVSU	0	0	(10,108,000)
Cash flows from investing activities
Cash acquired in acquisition	0	0	1,251,000
Non-cash investing and financing activities
Stock issued as consideration to acquire Global Cooling, Inc. and Sexton Biotechnologies, Inc.	0	0	19,932,000
Astero [Member]
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities
Change in fair value of contingent consideration	(81,000)
Cash flows from investing activities
Payments to Acquire Businesses, Net of Cash Acquired, Total	0	0	(12,439,000)
CBS Acquisition [Member]
Cash flows from investing activities
Payments to Acquire Businesses, Net of Cash Acquired, Total	0	0	(11,000,000)
Cash flows from financing activities
Payments of contingent consideration	0	0
Non-cash investing and financing activities
Stock issued as consideration to acquire Global Cooling, Inc. and Sexton Biotechnologies, Inc.	0	0	4,000,000
SciSafe [Member]
Cash flows from investing activities
Payments to Acquire Businesses, Net of Cash Acquired, Total		(14,947,000)	0
Non-cash investing and financing activities
Stock issued as consideration to acquire Global Cooling, Inc. and Sexton Biotechnologies, Inc.	0	17,916,000	0
Sexton Acquisition [Member]
Cash flows from investing activities
Cash acquired in acquisition	1,559,000
SAVSU Investment [Member]
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities
Loss from equity method investment in SAVSU	0	0	739,000
Sexton Biotechnologies, Inc. [Member]
Cash flows from investing activities
Investment	0	0	(1,500,000)
IVexSol Convertible Debt Investment [Member]
Cash flows from investing activities
Investment in iVexSol convertible debt	0	0	(1,000,000)
IVexSol Preferred Stock Investment [Member]
Cash flows from investing activities
Investment	0	(1,000,000)	0
PanTHERA Cryosolutions Investment [Member]
Cash flows from investing activities
Investment	$ 0	$ (995,000)	$ 0