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v3.23.3

Note 4 - Investment in Equity Securities (Details Textual) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Dec. 23, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($)
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount |  | $ (0) | $ (0) | $ 2,990 | $ 2,990 | $ (0)
Measurement Input, Expected Term [Member] |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Measurement Input |  |  |  | 3.5 |  |
Measurement Input, Probability [Member] | Valuation, Dynamic Options Approach [Member] |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Measurement Input |  |  |  | 0.50 |  |
Measurement Input, Probability [Member] | Valuation, Cost Approach [Member] |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Measurement Input |  |  |  | 0.50 |  |
Dynamic Cell Therapies, Inc. [Member] |  |  |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 19.00% |  |  |  |  |
Dynamic Cell Therapies, Inc. [Member] |  |  |  |  |  |
Payments to Acquire Equity Securities without Readily Determinable Fair Value | $ 4,700 |  |  |  |  |

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- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-3 + Details
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