Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Value of input used to measure contingent consideration liability from business combination.

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Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

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Note 2 - Fair Value Measurement (Details Textual)	3 Months Ended		9 Months Ended
Note 2 - Fair Value Measurement (Details Textual)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Oct. 01, 2020 USD ($)	Nov. 10, 2019	Apr. 01, 2019
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ (140,000)	$ (2,000)	$ 1,086,000	$ (1,528,000)
Measurement Input, Price Volatility [Member] \| Minimum [Member]
Warrants and Rights Outstanding, Measurement Input					0.568
Measurement Input, Price Volatility [Member] \| Maximum [Member]
Warrants and Rights Outstanding, Measurement Input					0.846
Astero [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0		(81,000)
Business Combination, Contingent Consideration, Liability, Total					$ 81,000
Astero [Member] \| Measurement Input, Discount Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input								0.175
Astero [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Minimum [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input								0.0229
Astero [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Maximum [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input								0.0241
Astero [Member] \| Measurement Input, Price Volatility [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input								0.56
CBS Acquisition [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 140,000		$ 140,000		140,000
CBS Acquisition [Member] \| Measurement Input, Discount Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.210		0.210				0.260
CBS Acquisition [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.0023		0.0023				0.0174
CBS Acquisition [Member] \| Measurement Input, Price Volatility [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.63		0.63				0.70
SciSafe Holdings, Inc [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ (141,000)		$ 1,200,000
Business Combination, Contingent Consideration, Liability, Total	$ 8,100,000		$ 8,100,000		$ 6,900,000	$ 3,700,000
SciSafe Holdings, Inc [Member] \| Measurement Input, Discount Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.068		0.068			0.045
SciSafe Holdings, Inc [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.0047		0.0047			0.0020
SciSafe Holdings, Inc [Member] \| Measurement Input, Asset Price Volatility [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.61		0.61			0.60
SciSafe Holdings, Inc [Member] \| Measurement Input, Revenue Volatility [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.22		0.22			0.15