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Note 10 - Distributions - Distribution Activity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended | 24 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 26, 2024 | Mar. 31, 2024 | Mar. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2023
Distributions declared per share (in dollars per share) |  | $ 0.38 | $ 0.33 |  |  | $ 1.37
Dividends, cash |  | $ 5,199 |  |  |  | $ 41,881
Dividends, shares (in shares) |  | 24,315 |  |  |  | 145,743
Dividends, stock |  |  |  | $ 273 |  | $ 1,833
August 16, 2024 Dividend [Member] | Forecast [Member] |  |  |  |  |  |
Distributions declared per share (in dollars per share) | $ 0.11 |  |  |  |  |
July 17, 2024 Dividend [Member] | Forecast [Member] |  |  |  |  |  |
Distributions declared per share (in dollars per share) | 0.11 |  |  |  |  |
First 2/23/2024 Dividend [Member] |  |  |  |  |  |
Record date |  | May 17, 2024 |  |  |  |
Payment date |  | Jun. 14, 2024 |  |  |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |  |  |
Dividends, cash |  | $ 0 |  |  |  |
Dividends, shares (in shares) |  | 0 |  |  |  |
Dividends, stock |  | $ 0 |  |  |  |
June 17, 2024 Dividend [Member] | Forecast [Member] |  |  |  |  |  |
Distributions declared per share (in dollars per share) | $ 0.11 |  |  |  |  |
Second 2/23/2024 Dividend [Member] |  |  |  |  |  |
Record date |  | Apr. 18, 2024 |  |  |  |
Payment date |  | May 15, 2024 |  |  |  |
Distributions declared per share (in dollars per share) |  | $ 0.11 |  |  |  |
Dividends, cash |  | $ 0 |  |  |  |
Dividends, shares (in shares) |  | 0 |  |  |  |
Dividends, stock |  | $ 0 |  |  |  |
Third 2/23/2024 Dividend [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 |  |  |  |
Fourth 2/23/2024 Dividend [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 |  |  |  |
First 10/27/2023 Dividend [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 |
Second 10/27/2023 Dividend [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 |
Third 10/27/2023 Dividend [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 |
Fourth 10/27/2023 Dividend [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 |
First 7/28/2023 Dividend [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 |
Second 7/28/2023 Dividend [Member] |  |  |  |  |  |
Record date |  |  |  | Oct. 18, 2023 |  |
Payment date |  |  |  | Nov. 11, 2023 |  |
Distributions declared per share (in dollars per share) |  |  |  |  | $ 0.11 |
Dividends, cash |  |  |  |  | $ 3,493 |
Dividends, shares (in shares) |  |  |  |  | 14,022 |
Dividends, stock |  |  |  |  | $ 173 |
Third 7/28/2023 Dividend [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 |
First 4/28/2023 Dividend [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 |
Second 4/28/2023 [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 |
Third 4/28/2023 Dividend [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 |
First 2/23/2023 Dividend [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 |
Second 2/23/2023 Dividend [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 |
Third 2/23/2023 Dividend [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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