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Consolidated Balance Sheets (Parentheticals) - $ / shares | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Preferred stock, par value (in dollars per share) | $ 0.01 |
Preferred stock, shares authorized (in shares) | 3,000,000 |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 47,000,000 | 47,000,000
Common stock, shares outstanding (in shares) | 22,853,653 | 21,320,414
Treasury stock, shares (in shares) | 205,485 | 54,329
Series A Preferred Stock [Member] |  |
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Preferred stock, shares authorized (in shares) | 2,445,598 | 2,445,598
Preferred stock, shares outstanding (in shares) | 0 |
Series B Preferred Stock [Member] |  |
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Preferred stock, shares authorized (in shares) | 2,000,000 | 0
Preferred stock, shares outstanding (in shares) | 854,753 | 0

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