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v3.23.3

Note 14 - Litigation Settlement (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 06, 2023 | Jun. 10, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Mar. 31, 2022
Loss Contingency, Estimate of Possible Loss |  |  |  | $ 200 |  |  | $ 200 |  |  |
Litigation Settlement, Expense |  |  | $ 0 | (544) |  | $ 0 | (233) |  |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  | $ 1,208 | 0 |  | $ (373) | 0 |  |  |
Harvard Apparatus Regenerative Technology, Inc. (“HART”) [Member] |  |  |  |  |  |  |  |  |  |
Investment Owned, Balance, Shares (in shares) |  |  | 706,626 |  |  | 706,626 |  |  |  |
Investment Owned, Fair Value |  |  | $ 3,800 |  |  | $ 3,800 |  |  |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  | $ 1,200 |  |  | $ (400) |  |  |  |
Biostage [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |
Conversion of Stock, Amount Issued | $ 6,000 |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ 6 |  |  |  |  |  |  |  |  |
Series E Preferred Stock in Biostage [Member] |  |  |  |  |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount |  |  |  |  | $ 3,900 |  |  |  |  |
Preferred Stock, Book Value, Inclusive of Accrued Dividends |  |  |  |  |  |  |  |  | $ 4,000 |
Convertible Preferred Stock [Member] | Biostage [Member] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ 6 |  |  |  |  |  |  |  |  |
Case in Suffolk Superior Court [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  |  |  |  |  |  |  | $ 5,200
Litigation Settlement, Expense |  |  |  |  | $ (4,900) |  |  | $ 300 |  |
Case in Suffolk Superior Court [Member] | Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued For Settlement (in shares) |  | 4,000 |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Settlement |  | $ 4,000 |  |  |  |  |  |  |  |
Estimated Litigation Liability |  |  |  | $ 500 |  |  | $ 500 |  |  |

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