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Note 11 - Earnings Per Share ("EPS") (Tables) | 6 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | 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 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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