Note 13 - Revenue - Revenues by Product Line (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total revenue	$ 36,220	$ 16,847
Product, Freezer and Thaw [Member]
Total revenue	15,335	4,848
Product, Cell Processing [Member]
Total revenue	14,899	8,928
Product, Storage and Cold Chain Services [Member]
Total revenue	154	0
Service, Storage and Cold Chain Services [Member]
Total revenue	3,090	2,204
Rental, Storage and Cold Chain Services [Member]
Total revenue	$ 2,742	$ 867