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Note 11 - Distributions - Distribution Activity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Feb. 28, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Distributions declared per share (in dollars per share) |  | $ 1.37 | $ 1.37 | $ 1.28
Dividends, cash |  | $ 44,434 | $ 41,881 |
Dividends, shares (in shares) |  | 194,526 | 145,743 |
Dividends, stock |  | $ 2,093 | $ 1,833 |
O 2025 M3 Dividends [Member] | Forecast [Member] |  |  |  |
Record date | Mar. 17, 2025 |  |  |
Payment date | Apr. 15, 2025 |  |  |
Distributions declared per share (in dollars per share) | $ 0.11 |  |  |
O 2025 M4 Dividends [Member] | Forecast [Member] |  |  |  |
Record date | Apr. 16, 2025 |  |  |
Payment date | May 15, 2025 |  |  |
Distributions declared per share (in dollars per share) | $ 0.11 |  |  |
O 2024 M10 1 Dividends [Member] |  |  |  |
Record date |  | Feb. 18, 2025 |  |
Payment date |  | Mar. 14, 2025 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 0 |  |
Dividends, shares (in shares) |  | 0 |  |
Dividends, stock |  | $ 0 |  |
O 2025 M5 Dividends [Member] | Forecast [Member] |  |  |  |
Record date | May 16, 2025 |  |  |
Payment date | Jun. 13, 2025 |  |  |
Distributions declared per share (in dollars per share) | $ 0.11 |  |  |
O 2024 M10 2 Dividends [Member] |  |  |  |
Record date |  | Jan. 16, 2025 |  |
Payment date |  | Feb. 14, 2025 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 4,226 |  |
Dividends, shares (in shares) |  | 18,428 |  |
Dividends, stock |  | $ 179 |  |
O 2024 M10 3 Dividends [Member] |  |  |  |
Record date |  | Dec. 16, 2024 |  |
Payment date |  | Jan. 15, 2025 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 4,235 |  |
Dividends, shares (in shares) |  | 16,428 |  |
Dividends, stock |  | $ 151 |  |
O 2024 M7 1 Dividends [Member] |  |  |  |
Record date |  | Nov. 15, 2024 |  |
Payment date |  | Dec. 13, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 4,124 |  |
Dividends, shares (in shares) |  | 15,584 |  |
Dividends, stock |  | $ 147 |  |
O 2024 M7 2 Dividends [Member] |  |  |  |
Record date |  | Oct. 17, 2024 |  |
Payment date |  | Nov. 14, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 4,022 |  |
Dividends, shares (in shares) |  | 17,706 |  |
Dividends, stock |  | $ 165 |  |
O 2024 M7 3 Dividends [Member] |  |  |  |
Record date |  | Sep. 16, 2024 |  |
Payment date |  | Oct. 16, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,914 |  |
Dividends, shares (in shares) |  | 18,539 |  |
Dividends, stock |  | $ 195 |  |
O 2024 M4 1 Dividends [Member] |  |  |  |
Record date |  | Aug. 16, 2024 |  |
Payment date |  | Sep. 13, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,818 |  |
Dividends, shares (in shares) |  | 17,441 |  |
Dividends, stock |  | $ 192 |  |
O 2024 M4 2 Dividends [Member] |  |  |  |
Record date |  | Jul. 17, 2024 |  |
Payment date |  | Aug. 15, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,775 |  |
Dividends, shares (in shares) |  | 16,852 |  |
Dividends, stock |  | $ 192 |  |
O 2024 M4 3 Dividends [Member] |  |  |  |
Record date |  | Jun. 17, 2024 |  |
Payment date |  | Jul. 16, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,766 |  |
Dividends, shares (in shares) |  | 15,860 |  |
Dividends, stock |  | $ 199 |  |
O 2024 M2 1 Dividends [Member] |  |  |  |
Record date |  | May 17, 2024 |  |
Payment date |  | Jun. 14, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,701 |  |
Dividends, shares (in shares) |  | 16,686 |  |
Dividends, stock |  | $ 201 |  |
O 2024 M2 2 Dividends [Member] |  |  |  |
Record date |  | Apr. 18, 2024 |  |
Payment date |  | May 15, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,654 |  |
Dividends, shares (in shares) |  | 16,687 |  |
Dividends, stock |  | $ 199 |  |
O 2024 M2 3 Dividends [Member] |  |  |  |
Record date |  | Mar. 19, 2024 |  |
Payment date |  | Apr. 16, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.05 |  |
Dividends, cash |  | $ 1,625 |  |
Dividends, shares (in shares) |  | 7,598 |  |
Dividends, stock |  | $ 85 |  |
O 2024 M2 4 Dividends [Member] |  |  |  |
Record date |  | Mar. 19, 2024 |  |
Payment date |  | Apr. 16, 2024 |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |
Dividends, cash |  | $ 3,574 |  |
Dividends, shares (in shares) |  | 16,717 |  |
Dividends, stock |  | $ 188 |  |
O 2023 M10 1 Dividends [Member] |  |  |  |
Record date |  |  | Feb. 16, 2024 |
Payment date |  |  | Mar. 15, 2024 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,463 |
Dividends, shares (in shares) |  |  | 18,257 |
Dividends, stock |  |  | $ 210 |
O 2023 M10 2 Dividends [Member] |  |  |  |
Record date |  |  | Jan. 18, 2024 |
Payment date |  |  | Feb. 14, 2024 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,462 |
Dividends, shares (in shares) |  |  | 15,873 |
Dividends, stock |  |  | $ 210 |
O 2023 M10 3 Dividends [Member] |  |  |  |
Record date |  |  | Dec. 19, 2023 |
Payment date |  |  | Jan. 16, 2024 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,472 |
Dividends, shares (in shares) |  |  | 14,563 |
Dividends, stock |  |  | $ 199 |
O 2023 M10 4 Dividends [Member] |  |  |  |
Record date |  |  | Nov. 17, 2023 |
Payment date |  |  | Dec. 15, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.05 |
Dividends, cash |  |  | $ 1,574 |
Dividends, shares (in shares) |  |  | 7,137 |
Dividends, stock |  |  | $ 93 |
O 2023 M7 1 Dividends [Member] |  |  |  |
Record date |  |  | Nov. 17, 2023 |
Payment date |  |  | Dec. 15, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,463 |
Dividends, shares (in shares) |  |  | 15,701 |
Dividends, stock |  |  | $ 206 |
O 2023 M7 2 Dividends [Member] |  |  |  |
Record date |  |  | Oct. 18, 2023 |
Payment date |  |  | Nov. 15, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,493 |
Dividends, shares (in shares) |  |  | 14,022 |
Dividends, stock |  |  | $ 173 |
O 2023 M7 3 Dividends [Member] |  |  |  |
Record date |  |  | Sep. 19, 2023 |
Payment date |  |  | Oct. 16, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,445 |
Dividends, shares (in shares) |  |  | 15,067 |
Dividends, stock |  |  | $ 184 |
O 2023 M4 1 Dividends [Member] |  |  |  |
Record date |  |  | Aug. 17, 2023 |
Payment date |  |  | Sep. 15, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,458 |
Dividends, shares (in shares) |  |  | 8,665 |
Dividends, stock |  |  | $ 106 |
O 2023 M4 2 Dividends [Member] |  |  |  |
Record date |  |  | Jul. 18, 2023 |
Payment date |  |  | Aug. 15, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,427 |
Dividends, shares (in shares) |  |  | 8,307 |
Dividends, stock |  |  | $ 105 |
O 2023 M4 3 Dividends [Member] |  |  |  |
Record date |  |  | Jun. 16, 2023 |
Payment date |  |  | Jul. 14, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,434 |
Dividends, shares (in shares) |  |  | 7,424 |
Dividends, stock |  |  | $ 96 |
O 2023 M2 1 Dividends [Member] |  |  |  |
Record date |  |  | May 18, 2023 |
Payment date |  |  | Jun. 14, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,087 |
Dividends, shares (in shares) |  |  | 7,128 |
Dividends, stock |  |  | $ 86 |
O 2023 M2 2 Dividends [Member] |  |  |  |
Record date |  |  | Apr. 18, 2023 |
Payment date |  |  | May 16, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,068 |
Dividends, shares (in shares) |  |  | 6,705 |
Dividends, stock |  |  | $ 84 |
O 2023 M2 3 Dividends [Member] |  |  |  |
Record date |  |  | Mar. 17, 2023 |
Payment date |  |  | Apr. 14, 2023 |
Distributions declared per share (in dollars per share) |  |  | $ 0.11 |
Dividends, cash |  |  | $ 3,035 |
Dividends, shares (in shares) |  |  | 6,894 |
Dividends, stock |  |  | $ 81 |

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