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Note 1 - Organization and Significant Accounting Policies (Details Textual)	1 Months Ended		4 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Apr. 20, 2020 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 30, 2020 USD ($)	Oct. 01, 2020 USD ($)	Sep. 30, 2019 USD ($)
Number of Reportable Segments					1
Number of Reporting Units					1
Contract with Customer, Liability, Revenue Recognized					$ 671,000
Impairment of Intangible Assets (Excluding Goodwill), Total		$ 0
Business Combination, Contingent Consideration, Liability, Total		$ 388,000				$ 221,000
Deferred Tax Payments, Social Security	$ 297,000				297,000
Payments of Deferred Payments					135,000
Debt Instrument, Decrease, Forgiveness	284,000
Impairment Loss Recognized During Period					0	0	$ 0
Unrecognized Tax Benefits, Ending Balance	255,000				255,000	96,000	0
Advertising Expense					552,000	$ 167,000	$ 43,000
Goodwill, Impairment Loss					$ 0
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Major Customers					1	1	1
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| One Customer [Member]
Concentration Risk, Percentage					17.00%	13.00%	15.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Number of Major Customers					2	1
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| One Customer [Member]
Concentration Risk, Percentage						17.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Two Customers [Member]
Concentration Risk, Percentage					32.00%
Supplier Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Suppliers							1
Supplier Concentration Risk [Member] \| Revenue Benchmark [Member] \| One Supplier [Member]
Concentration Risk, Percentage							12.00%
Supplier Concentration Risk [Member] \| Accounts Payable [Member]
Number of Suppliers				1		1
Supplier Concentration Risk [Member] \| Accounts Payable [Member] \| One Supplier [Member]
Concentration Risk, Percentage					10.00%	21.00%
Assets Held for Rent [Member]
Property, Plant and Equipment, Useful Life (Year)					3 years
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)					3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)					10 years
Contingent Convertible Preferred Stock [Member]
Debt Securities, Gain (Loss), Total						$ 0
Contingent Convertible Preferred Stock [Member] \| Series A-1 and A-2, Preferred Stock [Member]
Equity Securities without Readily Determinable Fair Value, Amount	3,400,000				$ 3,400,000	3,400,000
Contingent Convertible Preferred Stock [Member] \| Series E Preferred Stock [Member]
Equity Securities without Readily Determinable Fair Value, Amount	995,000				995,000
Contingent Convertible Preferred Stock [Member] \| Series A-2 Preferred Stock [Member]
Equity Securities without Readily Determinable Fair Value, Amount								$ 1,000,000.0
Contingent Convertible Preferred Stock [Member] \| Preferred Stock, Class E [Member]
Contingent Milestone Payment						2,000,000
Contingent Millstone Payment, #1					200,000
Convertible Debt Securities [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total										$ 1,000,000.0
Debt Securities, Gain (Loss), Total					1,300,000
SciSafe Holdings, Inc [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 9,900,000				9,900,000	6,900,000			$ 3,700,000
Sexton Biotechnologies [Member] \| Contingent Convertible Preferred Stock [Member]
Equity Securities without Readily Determinable Fair Value, Amount						1,500,000
PanTHERA Cryosolutions Investment [Member] \| Contingent Convertible Preferred Stock [Member] \| Series E Preferred Stock [Member]
Equity Securities without Readily Determinable Fair Value, Amount						995,000
PanTHERA Cryosolutions Investment [Member] \| Contingent Convertible Preferred Stock [Member] \| Preferred Stock, Class E [Member]
Equity Securities without Readily Determinable Fair Value, Amount								$ 995,000
Paycheck Protection Program CARES Act [Member]
Repayments of Debt			$ 2,175,320		$ (0)	$ 2,175,000	$ (0)
Debt Instrument, Interest Rate, Stated Percentage	1.00%				1.00%
Paycheck Protection Program CARES Act [Member] \| SciSafe Holdings, Inc [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt									$ 295,300
Debt Instrument, Interest Rate, Stated Percentage									1.00%