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Note 4 - Investments | 9 Months Ended
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Sep. 30, 2022
Notes to Financial Statements |
Investment Holdings [Text Block] | Note 4. Investments The following table shows the Company’s investments as of September 30, 2022 and December 31, 2021:
|  | September 30, 2022 |  |  | December 31, 2021 |
|  | Cost |  |  | Fair Value |  |  | Cost |  |  | Fair Value |
|  | (In thousands) |
Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ | 612,478 |  |  | $ | 609,032 |  |  | $ | 441,885 |  |  | $ | 437,317 |
Warrants |  |  | 11,971 |  |  |  | 22,113 |  |  |  | 10,023 |  |  |  | 20,200 |
Other |  |  | 1,200 |  |  |  | 1,300 |  |  |  | 1,450 |  |  |  | 200 |
Equity |  |  | 3,567 |  |  |  | 2,179 |  |  |  | 479 |  |  |  | 358 |
Total investments |  | $ | 629,216 |  |  | $ | 634,624 |  |  | $ | 453,837 |  |  | $ | 458,075 |
The following table shows the Company’s investments by industry sector as of September 30, 2022 and December 31, 2021:
|  | September 30, 2022 |  |  | December 31, 2021 |
|  | Cost |  |  | Fair Value |  |  | Cost |  |  | Fair Value |
|  | (In thousands) |
Life Science |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Biotechnology |  | $ | 148,952 |  |  | $ | 147,442 |  |  | $ | 109,899 |  |  | $ | 107,902 |
Medical Device |  |  | 114,364 |  |  |  | 116,967 |  |  |  | 88,681 |  |  |  | 84,567 |
Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Communications |  |  | 22,883 |  |  |  | 26,070 |  |  |  | 22,853 |  |  |  | 25,920 |
Consumer-Related |  |  | 109,906 |  |  |  | 108,301 |  |  |  | 92,158 |  |  |  | 93,194 |
Data Storage |  |  | 476 |  |  |  | 1,211 |  |  |  | 476 |  |  |  | 1,047 |
Internet and Media |  |  | 329 |  |  |  | 1,299 |  |  |  | 569 |  |  |  | 3,305 |
Networking |  |  | 13,551 |  |  |  | 13,413 |  |  |  | 17,390 |  |  |  | 17,964 |
Power Management |  |  | 1,585 |  |  |  | 2,254 |  |  |  | 1,585 |  |  |  | 2,609 |
Semiconductors |  |  | 56 |  |  |  | — |  |  |  | 101 |  |  |  | — |
Software |  |  | 108,910 |  |  |  | 107,441 |  |  |  | 60,902 |  |  |  | 60,807 |
Sustainability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Sustainability |  |  | 77,024 |  |  |  | 77,700 |  |  |  | 46,595 |  |  |  | 47,011 |
Healthcare Information and Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diagnostics |  |  | 9,840 |  |  |  | 9,844 |  |  |  | 12,393 |  |  |  | 12,377 |
Other |  |  | 7,621 |  |  |  | 8,682 |  |  |  | 175 |  |  |  | 1,177 |
Software |  |  | 13,719 |  |  |  | 14,000 |  |  |  | 60 |  |  |  | 195 |
Total investments |  | $ | 629,216 |  |  | $ | 634,624 |  |  | $ | 453,837 |  |  | $ | 458,075 |

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