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Note 8 - Financial Instruments With Off-balance-sheet Risk - Unfunded Commitments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Unfunded commitments, principal balance | $ 189,875 | $ 180,500
Fair value of unfunded commitment liability | 1,772 | 2,033
Better Place Forests Co. [Member] |  |
Unfunded commitments, principal balance | 1,000 | 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 | 7,500 | 15,000
Fair value of unfunded commitment liability | 97 | 194
Fictiv, Inc. [Member] |  |
Unfunded commitments, principal balance | 30,000 | 0
Fair value of unfunded commitment liability | 236 | 0
GT Medical Technologies, Inc. [Member] |  |
Unfunded commitments, principal balance | 20,000 | 0
Fair value of unfunded commitment liability | 100 | 0
Hometeam Technologies, Inc [Member] |  |
Unfunded commitments, principal balance | 10,000 | 0
Fair value of unfunded commitment liability | 100 | 0
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 | 0 | 15,000
Fair value of unfunded commitment liability | 0 | 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 | 252 | 251
Pivot Bio, Inc. [Member] |  |
Unfunded commitments, principal balance | 20,000 | 0
Fair value of unfunded commitment liability | 209 | 0
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 | 0
Fair value of unfunded commitment liability | 175 | 0
Supply Network Visibility Holdings, LLC [Member] |  |
Unfunded commitments, principal balance | 5,000 | 10,000
Fair value of unfunded commitment liability | 17 | 35
Swift Health Systems Inc. [Member] |  |
Unfunded commitments, principal balance | 375 | 0
Fair value of unfunded commitment liability | 0 | 0
Tallac Therapeutics, Inc [Member] |  |
Unfunded commitments, principal balance | 0 | 10,000
Fair value of unfunded commitment liability | 0 | 229
Viken Detection Corporation [Member] |  |
Unfunded commitments, principal balance | 0 | 10,000
Fair value of unfunded commitment liability | $ 0 | $ 160

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