Note 11 - Acquisitions - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
The 2019 Acquisitions [Member]
Total revenue		$ 37,728	$ 32,353
Net income (loss)		$ (3,160)	$ (3,397)
Basic and diluted (in dollars per share)		$ (0.16)	$ (0.20)
SciSafe Holdings, Inc [Member]
Total revenue	$ 52,613	$ 43,221
Net income (loss)	$ 1,798	$ (4,528)
Basic and diluted (in dollars per share)	$ 0.06	$ (0.23)
Diluted (in dollars per share)	$ (0.07)	$ (0.23)