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Note 11 - Earnings Per Share ("EPS") (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Numerator for EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 794 |  |  | $ | 90 |  |  | $ | 762 |  |  | $ | 294 |
Less: Net income from attributable to non-controlling interests |  |  | 22 |  |  |  | 18 |  |  |  | 47 |  |  |  | 64 |
Net income attributable to LGL Group common stockholders |  | $ | 772 |  |  | $ | 72 |  |  | $ | 715 |  |  | $ | 230 |
Denominator for EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 5,312,797 |  |  |  | 5,352,937 |  |  |  | 5,356,726 |  |  |  | 5,352,937 |
Dilutive effects: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants |  |  | 319,065 |  |  |  | 172,266 |  |  |  | 308,508 |  |  |  | 183,915 |
Restricted stock |  |  | 17,881 |  |  |  | 6,766 |  |  |  | 14,088 |  |  |  | 6,943 |
Weighted average common shares outstanding - diluted |  |  | 5,649,743 |  |  |  | 5,531,969 |  |  |  | 5,679,322 |  |  |  | 5,543,795 |
Income per common share attributable to LGL Group common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.15 |  |  | $ | 0.01 |  |  | $ | 0.13 |  |  | $ | 0.04 |
Diluted |  | $ | 0.14 |  |  | $ | 0.01 |  |  | $ | 0.13 |  |  | $ | 0.04 |

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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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