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Note 3 - Fair Value Measurement (Details Textual) |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 01, 2023 shares | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Oct. 01, 2020 USD ($)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  | $ 720,000 | $ (3,335,000) |  |
Shares Issued As Payment for Contingent Consideration Liability [Member] | Subsequent Event [Member] |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 116,973 |  |  |  |
SciSafe Holdings, Inc [Member] |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Total |  | 5,000,000.0 |  | $ 4,300,000 | $ 3,700,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  | $ 720,000 | $ (3,300,000) |  |
SciSafe Holdings, Inc [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.130 |  |  | 0.045
SciSafe Holdings, Inc [Member] | Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.044 |  |  | 0.0020
SciSafe Holdings, Inc [Member] | Measurement Input, Asset Price Volatility [Member] |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.71 |  |  | 0.60
SciSafe Holdings, Inc [Member] | Measurement Input, Revenue Volatility [Member] |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.31 |  |  | 0.15

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