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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Note 11 - Acquisitions - Consideration (Details) - USD ($) $ in Thousands					12 Months Ended
	Oct. 01, 2020	Nov. 12, 2019	Aug. 08, 2019	Apr. 01, 2019	Dec. 31, 2020	Dec. 31, 2019
Astero [Member]
Cash consideration				$ 12,521
Contingent consideration				1,491
Working capital adjustment				(71)
Total consideration transferred				$ 13,941
SAVSU [Member]
Stock consideration			$ 19,932		$ 0	$ 19,932
CBS Acquisition [Member]
Cash consideration		$ 11,000
Contingent consideration		856
Total consideration transferred		15,856
Stock consideration		$ 4,000			0	4,000
SciSafe Holdings, Inc [Member]
Cash consideration	$ 15,000
Contingent consideration	3,663
Working capital adjustment	(53)
Total consideration transferred	36,526
Stock consideration	$ 17,916				$ 17,916	$ 0