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Note 2 - Change in Accounting Policy (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Accounting Standards Update and Change in Accounting Principle [Table Text Block] |
|  | Previously |  |  | (1) |  |  |  |  |
|  | Reported |  |  | Adjustments |  |  | Revised |
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Shareholders' equity: |  |  |  |  |  |  |  |  |  |  |  |
Common stock, $.01 par value: 50,000,000 shares authorized; 12,226,306 and 13,115,341 shares outstanding as of December 31, 2022 and December 31, 2021, respectively |  | $ | 123,000 |  |  | $ | - |  |  | $ | 123,000 |
Additional paid in capital |  |  | - |  |  |  | 17,099,000 |  |  |  | 17,099,000 |
Retained earnings |  |  | 62,124,000 |  |  |  | (17,099,000 | ) |  |  | 45,025,000 |
Accumulated other comprehensive loss |  |  | (1,489,000 | ) |  |  | - |  |  |  | (1,489,000 | )
Total shareholders' equity |  |  | 60,758,000 |  |  |  | - |  |  |  | 60,758,000 |
Total liabilities and shareholders' equity |  | $ | 64,803,000 |  |  | $ | - |  |  | $ | 64,803,000 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  |  |  |  |  |  |  |  |  | Additional |  |  |  |  |  |  | Other |  |  |  |  |
|  | Common Stock |  |  | Paid-in |  |  | Retained |  |  | Comprehensive |  |  |  |  |
|  | Shares |  |  | Amount |  |  | Capital* |  |  | Earnings** |  |  | Loss |  |  | Total |
Balance as of December 31, 2021 as revised |  |  | 13,115,341 |  |  | $ | 132,000 |  |  | $ | 18,131,000 |  |  | $ | 44,357,000 |  |  | $ | (869,000 | ) |  | $ | 61,751,000 |
Common stock repurchased and retired as revised |  |  | (910,700 | ) |  |  | (9,000 | ) |  |  | (1,259,000 | ) |  |  | (2,614,000 | ) |  |  | - |  |  |  | (3,882,000 | )
Options exercised |  |  | 21,665 |  |  |  | - |  |  |  | 80,000 |  |  |  | - |  |  |  | - |  |  |  | 80,000 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 147,000 |  |  |  | - |  |  |  | - |  |  |  | 147,000 |
Total comprehensive income (loss) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,282,000 |  |  |  | (620,000 | ) |  |  | 2,662,000 |
Balance as of December 31, 2022 as revised |  |  | 12,226,306 |  |  | $ | 123,000 |  |  | $ | 17,099,000 |  |  | $ | 45,025,000 |  |  | $ | (1,489,000 | ) |  | $ | 60,758,000 |

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