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Note 11 - Earnings Per Share ("EPS") (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Three Months Ended March 31,
|  | 2026 |  | 2025
Numerator for EPS: |  |  |  |  |  |  |  |
Net (loss) income |  | $ | (605 | ) |  | $ | 13 |
Less: Net income attributable to non-controlling interests |  |  | 17 |  |  |  | 19 |
Net loss attributable to LGL Group common stockholders |  | $ | (622 | ) |  | $ | (6 | )
Denominator for EPS: |  |  |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 6,410,166 |  |  |  | 5,352,937 |
Dilutive effects (a): |  |  |  |  |  |  |  |
Warrants |  |  | — |  |  |  | — |
Stock options |  |  | — |  |  |  | — |
Restricted stock |  |  | — |  |  |  | — |
Weighted average common shares outstanding - diluted |  |  | 6,410,166 |  |  |  | 5,352,937 |
Loss per common share attributable to LGL Group common stockholders: |  |  |  |  |  |  |  |
Basic |  | $ | (0.10 | ) |  | $ | (0.00 | )
Diluted |  | $ | (0.10 | ) |  | $ | (0.00 | )

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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://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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