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Shareholders' Equity (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 10, 2009 | Dec. 31, 2024 | Dec. 31, 2023 | May 13, 2010
Class of Stock [Line Items] |  |  |  |
Preferred stock, shares authorized |  | 20,000,000 |  |
Preferred stock, shares outstanding |  | 0 | 0 |
Repurchase of common shares (in shares) |  | 339,200 | 402,143 |
Repurchase of common shares, value |  | $ 572,072 | $ 748,411 |
Amount available under current repurchase program |  | $ 2,400,000 |  |
Common Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Share-based compensation (in shares) |  | 169,991 | 157,360 |
Share repurchase program, number of shares authorized to be repurchased |  |  |  | $ 10,000,000
Repurchase of common shares (in shares) |  | 339,200 | 402,143 |
Repurchase of common shares, value |  | $ 572,072 | $ 748,411 |
Common Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Initial public offering, effective date | Aug. 10, 2009 |  |  |
Initial public offering, shares issued | 5,000,000 |  |  |
Initial public offering, price per share | $ 17.00 |  |  |
Initial public offering, gross proceeds | $ 85,000,000.0 |  |  |
Initial public offering, underwriting discounts | 6,000,000.0 |  |  |
Initial public offering, issuance costs | 4,200,000 |  |  |
Initial public offering, net proceeds | $ 74,800,000 |  |  |

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