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Note 8 - Financial Instruments With Off-balance-sheet Risk - Unfunded Commitments (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Unfunded commitments, principal balance | $ 137,500 | $ 180,500
Fair value of unfunded commitment liability | 1,474 | 2,033
Better Place Forests Co. [Member] |  |
Unfunded commitments, principal balance | 1,500 | 0
Fair value of unfunded commitment liability | 0 | 0
BrightInsight, Inc. [Member] |  |
Unfunded commitments, principal balance | 10,000 | 15,500
Fair value of unfunded commitment liability | 132 | 241
Britecore Holdings, Inc. [Member] |  |
Unfunded commitments, principal balance | 2,500 | 5,000
Fair value of unfunded commitment liability | 36 | 72
Candesant Biomedical Corporation [Member] |  |
Unfunded commitments, principal balance | 10,000 | 10,000
Fair value of unfunded commitment liability | 151 | 151
Ceribell, Inc. [Member] |  |
Unfunded commitments, principal balance | 21,000 | 0
Fair value of unfunded commitment liability | 120 | 0
Divergent Technologies, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 11,250
Fair value of unfunded commitment liability | 0 | 118
Elligo Healthcare Research, Inc. [Member] |  |
Unfunded commitments, principal balance | 15,000 | 15,000
Fair value of unfunded commitment liability | 194 | 194
MicroTransponder, Inc. [Member] |  |
Unfunded commitments, principal balance | 22,500 | 22,500
Fair value of unfunded commitment liability | 0 | 0
Mirantis, Inc [Member] |  |
Unfunded commitments, principal balance | 15,000 | 15,000
Fair value of unfunded commitment liability | 136 | 136
Optoro, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 6,250
Fair value of unfunded commitment liability | 0 | 0
Parse Biosciences, Inc. [Member] |  |
Unfunded commitments, principal balance | 15,000 | 15,000
Fair value of unfunded commitment liability | 251 | 251
SafelyYou, Inc [Member] |  |
Unfunded commitments, principal balance | 10,000 | 20,000
Fair value of unfunded commitment liability | 147 | 270
Sonex Health, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 15,000
Fair value of unfunded commitment liability | 0 | 176
Standvast Holdings, LLC [Member] |  |
Unfunded commitments, principal balance | 5,000 |
Fair value of unfunded commitment liability | 175 |
Supply Network Visibility Holdings, LLC [Member] |  |
Unfunded commitments, principal balance | 5,000 | 10,000
Fair value of unfunded commitment liability | 17 | 35
Tallac Therapeutics, Inc [Member] |  |
Unfunded commitments, principal balance | 5,000 | 10,000
Fair value of unfunded commitment liability | 115 | 229
Viken Detection Corporation [Member] |  |
Unfunded commitments, principal balance | 0 | 10,000
Fair value of unfunded commitment liability | $ 0 | $ 160

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 + Details
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