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Note 6 - Marketable Equity Securities | 6 Months Ended
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Jun. 30, 2024
Notes to Financial Statements |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] |
6. | Marketable Equity Securities
In April 2023, the Company received shares of common stock of Harvard Apparatus Regenerative Technology, Inc. (“HRGN”, formerly known as Biostage, Inc.) in connection with settlement of indemnification obligations related to litigation which was resolved during the year ended December 31, 2022. These shares had an estimated fair value $3.5 million and are included in the consolidated balance sheet as a component of other long-term assets as of December 31, 2023. During the six months ended June 30, 2024, the Company sold all of its remaining HRGN shares. The Company received cash proceeds of $1.4 million and $1.9 million from HRGN shares sold during the three and six months ended June 30, 2024, respectively. The Company recorded losses on equity securities of $0.3 million and $1.6 million during the three and six months ended June 30, 2024, respectively.

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