Note 12 - Acquisitions - Pro Forma Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Sexton Acquisition [Member]
Total revenue	$ 122,494	$ 50,856
Net income (loss)	(9,860)	(1,028)
GCI Acquisition [Member]
Total revenue	143,732	87,370
Net income (loss)	$ (16,375)	501
SciSafe Holdings, Inc [Member]
Total revenue		52,613	$ 43,221
Net income (loss)		$ 1,798	(4,528)
CBS Acquisition [Member]
Total revenue			37,001
Net income (loss)			(493)
SAVSU [Member]
Total revenue			28,824
Net income (loss)			(1,518)
Astero [Member]
Total revenue			28,745
Net income (loss)			$ (183)