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Accounting And Reporting Policies (Tables) | 12 Months Ended
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Dec. 31, 2019
Accounting Policies [Abstract] |
Subsidiaries of the Company | As of December 31, 2019, the subsidiaries of the Company are as follows:
|  | Owned By The LGL Group, Inc. |
LGL Systems Acquisition Holding Company, LLC | * |  | 62.2 | %
M-tron Systems Holdings, LLC |  |  | 100.0 | %
M-tron Industries, Inc. |  |  | 100.0 | %
Piezo Technology, Inc. |  |  | 100.0 | %
Piezo Technology India Private Ltd. |  |  | 99.9 | %
M-tron Asia, LLC |  |  | 100.0 | %
M-tron Industries, Ltd. |  |  | 100.0 | %
GC Opportunities Ltd. |  |  | 100.0 | %
M-tron Services, Ltd. |  |  | 100.0 | %
Precise Time and Frequency, LLC |  |  | 100.0 | %
Lynch Systems, Inc. |  |  | 100.0 | %
* - Accounted for as an equity method investment |  |  |  |
Future Amortization Expense of Finite-Lived Intangible Assets | The estimated aggregate amortization expense for intangible assets, excluding goodwill, for each of the remaining years of the estimated useful life is as follows (in thousands):
2020 |  | $ | 75 |
2021 |  |  | 75 |
2022 |  |  | 75 |
2023 |  |  | 75 |
2024 |  |  | 62 |
Total |  | $ | 362 |
Reconciliation of Basic to Diluted Weighted Average Shares Outstanding |
|  | Years Ended December 31, |
|  | 2019 |  |  | 2018 |
Weighted average shares outstanding - basic |  |  | 4,883,923 |  |  |  | 4,748,609 |
Effect of diluted securities |  |  | 93,672 |  |  |  | 126,422 |
Weighted average shares outstanding - diluted |  |  | 4,977,595 |  |  |  | 4,875,031 |

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