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Note 12 - Earnings Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Year Ended December 31,
(in thousands, except for share data) |  | 2023 |  | 2022
Numerator for EPS: |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 345 |  |  | $ | (4,877 | )
Less: Net income from continuing operations attributable to non-controlling interests |  |  | 48 |  |  |  | — |
Income (loss) attributable to LGL Group common stockholders from continuing operations |  |  | 297 |  |  |  | (4,877 | )
(Loss) income from discontinued operations, net of tax |  |  | (28 | ) |  |  | 1,885 |
Net income (loss) attributable to LGL Group common stockholders |  | $ | 269 |  |  | $ | (2,992 | )
Denominator for EPS: |  |  |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 5,352,937 |  |  |  | 5,338,417 |
Dilutive effects (a): |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | 45,249 |
Weighted average common shares outstanding - diluted |  |  | 5,352,937 |  |  |  | 5,383,666 |
Income (loss) per common share attributable to LGL Group common stockholders: |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.06 |  |  | $ | (0.91 | )
(Loss) income from discontinued operations |  |  | (0.01 | ) |  |  | 0.35 |
Net income (loss) attributable to LGL Group common stockholders |  | $ | 0.05 |  |  | $ | (0.56 | )
Diluted: |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.06 |  |  | $ | (0.91 | )
(Loss) income from discontinued operations |  |  | (0.01 | ) |  |  | 0.35 |
Net income (loss) attributable to LGL Group common stockholders |  | $ | 0.05 |  |  | $ | (0.56 | )

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