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Note 9 - Notes Payable - Schedule of Notes Payable at Face Value and Notes Payable to Related Parties (Details) (Parentheticals) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2024 | [1] | Dec. 31, 2023 | May 31, 2023 | Jan. 31, 2021 | Jun. 30, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Oct. 31, 2015
Phoenix [Member] |  |  |  |  |  |  |  |
Interest rate | 8.00% | 8.00% |  |  |  |  |  |
Debt maturity | Aug. 26, 2024 | Aug. 26, 2024 |  |  |  |  |  |
Revolving Credit Facility Expiring December 1, 2026 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 65.0 | $ 65.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Dec. 01, 2026 | Dec. 01, 2026 |  |  |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Amount of securing assets | $ 2,231.7 | $ 2,252.9 |  |  |  |  |  |
Interest rate | 6.30% | 6.30% |  |  |  |  |  |
Revolving Credit Facility Expiring October 30, 2025 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 50.0 | $ 50.0 |  |  |  |  |  | $ 50.0
Revolving credit facility, expiration date | Oct. 30, 2025 | Oct. 30, 2025 |  |  |  |  |  |
Revolving Credit Facility Expiring December 15, 2025 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 100.0 | $ 100.0 |  |  |  | $ 100.0 |  |
Revolving credit facility, expiration date | Dec. 15, 2025 | Dec. 15, 2025 |  |  |  |  |  |
Revolving Credit Facility Expiring July 20, 2025 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 50.0 | $ 50.0 |  |  |  |  | $ 50.0 |
Revolving credit facility, expiration date | Jul. 20, 2025 | Jul. 20, 2025 |  |  |  |  |  |
Revolving Credit Facility Expiring December 11, 2024 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 20.0 | $ 20.0 |  |  | $ 20.0 |  |  |
Revolving credit facility, expiration date | Dec. 11, 2024 | Dec. 11, 2024 |  |  |  |  |  |
Revolving Credit Facility Expiring October 15, 2025 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 250.0 | $ 250.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Oct. 15, 2025 | Oct. 15, 2025 |  |  |  |  |  |
Revolving Credit Facility Expiring July 31, 2026 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 35.0 | $ 35.0 |  | $ 35.0 |  |  |  |
Revolving credit facility, expiration date | Jul. 31, 2026 | Jul. 31, 2026 |  |  |  |  |  |
Revolving Credit Facility Expiring December 15, 2026 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 300.0 | $ 300.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Dec. 15, 2026 | Dec. 15, 2026 |  |  |  |  |  |
Revolving Credit Facility Expiring September 1, 2025 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 75.0 | $ 75.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Sep. 01, 2025 | Sep. 01, 2025 |  |  |  |  |  |
Revolving Credit Facility Expiring May 15, 2026 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 300.0 | $ 300.0 |  |  |  |  |  |
Revolving credit facility, expiration date | May 15, 2026 | May 15, 2026 |  |  |  |  |  |
Revolving Credit Facility Expiring November 15, 2028 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 325.0 | $ 325.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Nov. 15, 2028 | Nov. 15, 2028 |  |  |  |  |  |
Revolving Credit Facility Expiring August 25, 2024 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 100.0 | $ 100.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Aug. 05, 2024 | Aug. 05, 2024 |  |  |  |  |  |
Revolving Credit Facility Expiring March 15, 2027 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 100.0 | $ 100.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Mar. 15, 2027 | Mar. 15, 2027 |  |  |  |  |  |
Revolving Credit Facility Expiring May 26, 2026 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 20.0 | $ 20.0 | $ 20.0 |  |  |  |  |
Revolving credit facility, expiration date | May 26, 2026 | May 26, 2026 |  |  |  |  |  |
Revolving Credit Facility Expiring February 15, 2028 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 300.0 | $ 300.0 |  |  |  |  |  |
Revolving credit facility, expiration date | Feb. 15, 2028 | Feb. 15, 2028 |  |  |  |  |  |
Revolving Credit Facility Expiring May 17, 2027 [Member] |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 150.0 | $ 150.0 |  |  |  |  |  |
Revolving credit facility, expiration date | May 17, 2027 | May 17, 2027 |  |  |  |  |  |
[1] | As of March 31, 2024, the Prime Rate was 8.50% and the Secured Overnight Financing Rate ("SOFR") was 5.34%.

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