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Note 12 - Commitments and Contingencies - Schedule of Equity Securities Repurchased (Details) - USD ($) |  | 1 Months Ended
--- | --- | ---
Jan. 01, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022
Number of Shares Purchased (in shares) |  |  |  |  | 570,921 |
Shares Purchased, Publicly Announced Programs (in shares) |  |  |  |  | 570,921 |
Shares Purchased as Part of Publicly Announced Programs [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) |  |  |  |  | 570,921 |
Shares Purchased, Publicly Announced Programs (in shares) |  |  |  |  | 570,921 |
Shares Purchased as Part of Publicly Announced Programs [Member] | Subsequent Event [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) |  | 981,000 |  |  |  |
Shares Purchased, Publicly Announced Programs (in shares) |  | 981,000 |  |  |  |
Share Repurchase Program [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) |  |  |  |  | 570,921 |
Shares Purchased, Publicly Announced Programs (in shares) |  |  |  |  | 570,921 |
Common Stock [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) |  |  |  |  | 282,163 | 288,758
Average Price Paid per Share (in dollars per share) |  |  |  |  | $ 5.34 | $ 5.21
Shares Purchased, Publicly Announced Programs (in shares) |  |  |  |  | 282,163 | 288,758
Authorized Amount |  |  |  |  | $ 27,000,767 | $ 28,500,463
Average Price Paid per Share (in dollars per share) |  |  |  |  | $ 5.34 | $ 5.21
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 27,000,767 | $ 28,500,463
Common Stock [Member] | Shares Purchased as Part of Publicly Announced Programs [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) |  |  |  |  | 282,163 | 288,758
Average Price Paid per Share (in dollars per share) |  |  |  |  | $ 5.34 | $ 5.21
Shares Purchased, Publicly Announced Programs (in shares) |  |  |  |  | 282,163 | 288,758
Authorized Amount |  |  |  |  | $ 27,000,767 | $ 28,500,463
Average Price Paid per Share (in dollars per share) |  |  |  |  | $ 5.34 | $ 5.21
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 27,000,767 | $ 28,500,463
Common Stock [Member] | Shares Purchased as Part of Publicly Announced Programs [Member] | Subsequent Event [Member] |  |  |  |  |  |
Number of Shares Purchased (in shares) | 350,832 | 303,176 | 326,992 | 350,832 |  |
Average Price Paid per Share (in dollars per share) |  | $ 4.97 | $ 4.61 | $ 4.29 |  |
Shares Purchased, Publicly Announced Programs (in shares) | 350,832 | 303,176 | 326,992 | 350,832 |  |
Authorized Amount | $ 25,502,669 | $ 22,503,206 | $ 24,003,172 |  |  |
Average Price Paid per Share (in dollars per share) |  | $ 4.97 | $ 4.61 | $ 4.29 |  |
Stock Repurchase Program, Authorized Amount | $ 25,502,669 | $ 22,503,206 | $ 24,003,172 |  |  |

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