Note 13 - Subsequent Events	3 Months Ended
Mar. 31, 2025
Notes to Financial Statements
Subsequent Events [Text Block]	Note 13. Subsequent Events On April 7, 2025, the Company funded a $5.0 million debt investment to a new portfolio company, SparkCharge, Inc. On April 9, 2025, OneNetwork, Inc. (d/b/a Finexio) prepaid its outstanding principal balance of $5.0 million on its venture loan, plus interest and end-of-term payment. In connection with the prepayment, all future commitments to make debt investments were terminated. The Company continues to hold warrants in OneNetwork, Inc. (d/b/a Finexio). On April 14, 2025, Kodiak Robotics, Inc. (“Kodiak”) and Ares Acquisition Corporation II (NYSE: AACT) (“AACT”), a publicly traded special purpose acquisition company, announced they entered into a definitive business combination agreement through which Kodiak will become a publicly-listed company. AACT is an affiliate of Ares Management Corporation (NYSE: ARES). On April 17, 2025, the Company funded a $0.3 million debt investment to an existing portfolio company, Better Place Forests Co. On April 17, 2025, the Company funded a $0.1 million debt investment to an existing portfolio company, Swift Health Systems, Inc. On April 25, 2025, the Company amended its NYL Facility to, among other things, extend the investment period to June 5, 2027. In addition, the amendment amended the interest rate for advances made after April 25, 2025, fixing the interest rate at the greater of (i) 4.60% and (ii) the Three Year I Curve plus 2.95% with the interest rate to be reset on any advance date. On April 28, 2025, the assignee of Western Alliance Bank’s loans to Soli Organic, Inc. (“Soli”) issued a “Blockage Notice” to the Company under a certain Subordination Agreement by and between Western Alliance Bank and the Company. The Blockage Notice stated that a default occurred under the assignee’s loan to Soli and that the Company was blocked from receiving any payments from Soli in connection with the Company’s debt investment in Soli until the assignee was repaid in full and that the Company was blocked from exercising any rights or remedies with respect thereto for a period of up to 180 days. On April 28, 2025 (the “Conversion Date”), the holders of the 2031 Convertible Notes converted $2.0 million of the principal balance of the 2031 Convertible Notes plus accrued interest into 237,714 shares of common stock of the Company at the volume-weighted average closing sale price for the five trading days immediately prior to the Conversion Date of $8.46.

Note 13 - Subsequent Events

3 Months Ended

Mar. 31, 2025

Note 13. Subsequent Events

On April 7, 2025, the Company funded a $5.0 million debt investment to a new portfolio company, SparkCharge, Inc.

On April 9, 2025, OneNetwork, Inc. (d/b/a Finexio) prepaid its outstanding principal balance of $5.0 million on its venture loan, plus interest and end-of-term payment. In connection with the prepayment, all future commitments to make debt investments were terminated. The Company continues to hold warrants in OneNetwork, Inc. (d/b/a Finexio).

On April 14, 2025, Kodiak Robotics, Inc. (“Kodiak”) and Ares Acquisition Corporation II (NYSE: AACT) (“AACT”), a publicly traded special purpose acquisition company, announced they entered into a definitive business combination agreement through which Kodiak will become a publicly-listed company. AACT is an affiliate of Ares Management Corporation (NYSE: ARES).

On April 17, 2025, the Company funded a $0.3 million debt investment to an existing portfolio company, Better Place Forests Co.

On April 17, 2025, the Company funded a $0.1 million debt investment to an existing portfolio company, Swift Health Systems, Inc.

On April 25, 2025, the Company amended its NYL Facility to, among other things, extend the investment period to June 5, 2027. In addition, the amendment amended the interest rate for advances made after April 25, 2025, fixing the interest rate at the greater of (i) 4.60% and (ii) the Three Year I Curve plus 2.95% with the interest rate to be reset on any advance date.

On April 28, 2025, the assignee of Western Alliance Bank’s loans to Soli Organic, Inc. (“Soli”) issued a “Blockage Notice” to the Company under a certain Subordination Agreement by and between Western Alliance Bank and the Company. The Blockage Notice stated that a default occurred under the assignee’s loan to Soli and that the Company was blocked from receiving any payments from Soli in connection with the Company’s debt investment in Soli until the assignee was repaid in full and that the Company was blocked from exercising any rights or remedies with respect thereto for a period of up to 180 days.

On April 28, 2025 (the “Conversion Date”), the holders of the 2031 Convertible Notes converted $2.0 million of the principal balance of the 2031 Convertible Notes plus accrued interest into 237,714 shares of common stock of the Company at the volume-weighted average closing sale price for the five trading days immediately prior to the Conversion Date of $8.46.