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Note 8 - Financial Instruments With Off-balance-sheet Risk - Unfunded Commitments (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Unfunded commitments, principal balance | $ 149,000 | $ 181,000
Fair value of unfunded commitment liability | 1,170 | 1,637
Britecore Holdings, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 2,500
Fair value of unfunded commitment liability | 0 | 36
Candesant Biomedical, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 10,000
Fair value of unfunded commitment liability | 0 | 151
Ceribell, Inc. [Member] |  |
Unfunded commitments, principal balance | 21,000 | 21,000
Fair value of unfunded commitment liability | 120 | 120
Crafty Holdings, Inc.[Member] |  |
Unfunded commitments, principal balance | 5,000 | 5,000
Fair value of unfunded commitment liability | 65 | 65
Fictiv, Inc. [Member] |  |
Unfunded commitments, principal balance | 0 | 30,000
Fair value of unfunded commitment liability | 0 | 236
GT Medical Technologies, Inc. [Member] |  |
Unfunded commitments, principal balance | 20,000 | 20,000
Fair value of unfunded commitment liability | 100 | 100
HappyCo, Inc [Member] |  |
Unfunded commitments, principal balance | 2,000 | 0
Fair value of unfunded commitment liability | 25 | 0
Hometeam Technologies, Inc [Member] |  |
Unfunded commitments, principal balance | 10,000 | 10,000
Fair value of unfunded commitment liability | 100 | 100
Long Grove Pharmaceuticals, LLC [Member] |  |
Unfunded commitments, principal balance | 10,000 | 0
Fair value of unfunded commitment liability | 75 | 0
MasteryPrep, LLC [Member] |  |
Unfunded commitments, principal balance | 5,000 | 0
Fair value of unfunded commitment liability | 50 | 0
MicroTransponder, Inc. [Member] |  |
Unfunded commitments, principal balance | 7,500 | 15,000
Fair value of unfunded commitment liability | 0 | 0
MML US, Inc [Member] |  |
Unfunded commitments, principal balance | 20,000 | 0
Fair value of unfunded commitment liability | 100 | 0
OneNetworks, Inc. dba Finexio [Member] |  |
Unfunded commitments, principal balance | 0 | 5,000
Fair value of unfunded commitment liability | 0 | 26
Onkos Surgical, Inc. [Member] |  |
Unfunded commitments, principal balance | 5,000 | 5,000
Fair value of unfunded commitment liability | 27 | 27
Parse Biosciences, Inc. [Member] |  |
Unfunded commitments, principal balance | 5,000 | 15,000
Fair value of unfunded commitment liability | 84 | 252
Pivot Bio, Inc. [Member] |  |
Unfunded commitments, principal balance | 10,000 | 20,000
Fair value of unfunded commitment liability | 105 | 209
SafelyYou, Inc [Member] |  |
Unfunded commitments, principal balance | 0 | 5,000
Fair value of unfunded commitment liability | 0 | 73
Scientia Vascular, Inc. [Member] |  |
Unfunded commitments, principal balance | 3,500 | 0
Fair value of unfunded commitment liability | 42 | 0
Sparkcharge, Inc. [Member] |  |
Unfunded commitments, principal balance | 10,000 | 0
Fair value of unfunded commitment liability | 123 | 0
Standvast Holdings, LLC [Member] |  |
Unfunded commitments, principal balance | 0 | 2,500
Fair value of unfunded commitment liability | 0 | 88
Supply Network Visibility Holdings, LLC [Member] |  |
Unfunded commitments, principal balance | 10,000 | 10,000
Fair value of unfunded commitment liability | 79 | 79
Ursa Space Systems Inc. [Member] |  |
Unfunded commitments, principal balance | 5,000 | 5,000
Fair value of unfunded commitment liability | $ 75 | $ 75

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