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Note 11 - Earnings Per Share ("EPS") | 6 Months Ended
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Jun. 30, 2025
Notes to Financial Statements |
Earnings Per Share [Text Block] | 11. Earnings Per Share ("EPS") The following table presents a reconciliation of Net income (loss) and shares used in calculating basis and diluted net income (loss) per common share for the periods indicated:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Numerator for EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  | $ | (45 | ) |  | $ | 161 |  |  | $ | (32 | ) |  | $ | 204 |
Less: Net income from attributable to non-controlling interests |  |  | 6 |  |  |  | 24 |  |  |  | 25 |  |  |  | 46 |
Net (loss) income attributable to LGL Group common stockholders |  | $ | (51 | ) |  | $ | 137 |  |  | $ | (57 | ) |  | $ | 158 |
Denominator for EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 5,352,937 |  |  |  | 5,352,937 |  |  |  | 5,352,937 |  |  |  | 5,352,937 |
Dilutive effects (a): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants |  |  | — |  |  |  | 125,178 |  |  |  | — |  |  |  | 190,399 |
Restricted stock |  |  | — |  |  |  | 4,428 |  |  |  | — |  |  |  | 5,533 |
Weighted average common shares outstanding - diluted |  |  | 5,352,937 |  |  |  | 5,482,543 |  |  |  | 5,352,937 |  |  |  | 5,548,869 |
(Loss) income per common share attributable to LGL Group common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.01 | ) |  | $ | 0.03 |  |  | $ | (0.01 | ) |  | $ | 0.03 |
Diluted |  | $ | (0.01 | ) |  | $ | 0.02 |  |  | $ | (0.01 | ) |  | $ | 0.03 |
(a) | For the three and six months ended June 30, 2025, weighted average shares used for calculating earnings per share excludes warrants to purchase 1,051,664 shares of common stock as well as 36,274 shares from restricted stock awards as the inclusion of these instruments would be anti-dilutive to the earnings per share calculation.

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