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v3.21.1

Note 1 - Organization and Significant Accounting Policies (Details Textual) |  | 6 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 20, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) $ / shares | Dec. 31, 2019 USD ($) | Nov. 30, 2020 USD ($) | Oct. 01, 2020 USD ($) | Sep. 30, 2019 USD ($) | Jan. 01, 2019 USD ($) | Dec. 31, 2018 USD ($)
Number of Reportable Segments |  |  | 1 |  |  |  |  |  |
Number of Operating Segments |  |  | 1 |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total |  | $ 0 |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Total |  | $ 388,000 | $ 221,000 |  |  |  |  |  |
Deferred Tax Payments, Social Security |  |  | $ 432,000 |  |  |  |  |  |
Deferred Social Security Tax Payments Payback, Percentage Tranche One |  |  | 50.00% |  |  |  |  |  |
Deferred Social Security Tax Payments Payback, Percentage Tranche Two |  |  | 50.00% |  |  |  |  |  |
Impairment Loss Recognized During Period |  |  | $ 0 | $ 0 |  |  |  |  |
Operating Lease, Right-of-Use Asset |  |  | 9,675,000 | 1,040,000 |  |  |  | $ 1,300,000 |
Operating Lease, Liability, Total |  |  | 9,864,000 |  |  |  |  | 1,800,000 |
Unrecognized Tax Benefits, Ending Balance |  |  | 96,000 | 0 |  |  |  |  | $ 0
Advertising Expense |  |  | $ 167,000 | $ 43,000 |  |  |  |  |
Number of Reporting Units |  |  | 1 |  |  |  |  |  |
Goodwill, Impairment Loss |  |  | $ 0 |  |  |  |  |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  | 13.00% | 15.00% |  |  |  |  |
Number of Major Customers |  |  | 1 | 1 |  |  |  |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | CryoStor Products [Member] |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  | 60.00% | 74.00% |  |  |  |  |
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  | 17.00% | 25.00% |  |  |  |  |
Number of Major Customers |  |  | 1 | 2 |  |  |  |  |
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 | 2 |  |  |  |  |
Supplier Concentration Risk [Member] | Accounts Payable [Member] | One Supplier [Member] |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  | 21.00% |  |  |  |  |  |
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Two Suppliers [Member] |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 24.00% |  |  |  |  |
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] |  |  |  |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount |  |  | $ 1,500,000 |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Conversion Price Per Share (in dollars per share) | $ / shares |  |  | $ 0.33 |  |  |  |  |  |
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 |  |  |  |  |  |
Contingent Convertible Preferred Stock [Member] | Series E Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount |  |  | 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 |  |  |  |  |  |
Convertible Debt Securities [Member] |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale, Amortized Cost, Total |  |  |  |  |  |  | $ 1,000,000.0 |  |
Debt Securities, Gain (Loss), Total |  |  | 1,300,000 | $ 0 |  |  |  |  |
SciSafe Holdings, Inc [Member] |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Total |  |  | 6,900,000 |  |  | $ 3,700,000 |  |  |
Operating Lease, Right-of-Use Asset |  |  |  |  |  |  |  | $ 1,300,000 |
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] | 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 |  | $ 2,175,000 | $ (0) |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 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% |  |  |

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