Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 01, 2021	May 03, 2021	Oct. 01, 2020	Aug. 07, 2019
Stock-based Compensation, Tax Benefits	$ 10,500	$ 3,200	$ 2,300
Operating Loss Carryforwards, Total	120,600
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	39,500
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	81,100
GCI Acquisition [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	24,100				$ 24,133
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	8,000
Sexton Acquisition [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	1,500			$ 1,482
SciSafe Holdings, Inc [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities						$ 3,297
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	3,300
SAVSU [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities							$ 1,541
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 1,500