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Investments (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments [Abstract] |
Schedule of cost and estimated fair value of investments |
|  | Cost |  |  | Gross unrealized gain |  |  | Gross unrealized loss |  |  | Fair value |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market Savings |  | $ | 1,902 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 1,902 |
Treasury Bills |  |  | 7,900 |  |  |  | 26 |  |  |  | 0 |  |  |  | 7,926 |
Equity Securities |  |  | 54 |  |  |  | 2 |  |  |  | 0 |  |  |  | 56 |
|  |  | 9,856 |  |  |  | 28 |  |  |  | 0 |  |  |  | 9,884 |
Less Cash Equivalents |  |  | 9,802 |  |  |  | 26 |  |  |  | 0 |  |  |  | 9,828 |
Total Investments, December 31, 2023 |  | $ | 54 |  |  | $ | 2 |  |  | $ | 0 |  |  | $ | 56 |
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial Paper |  | $ | 1,377 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 1,377 |
Treasury Bills |  |  | 7,922 |  |  |  | 32 |  |  |  | 0 |  |  |  | 7,954 |
Equity Securities |  |  | 54 |  |  |  | 2 |  |  |  | 0 |  |  |  | 56 |
|  |  | 9,353 |  |  |  | 34 |  |  |  | 0 |  |  |  | 9,387 |
Less Cash Equivalents |  |  | 7,319 |  |  |  | 32 |  |  |  | 0 |  |  |  | 7,351 |
Total Investments, December 31, 2022 |  | $ | 2,034 |  |  | $ | 2 |  |  | $ | 0 |  |  | $ | 2,036 |
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) |
|  | Years Ended December 31, |
|  | 2023 |  |  | 2022 |
Unrealized Gains |  |  |  |  |  |  |  |
Unrealized holding gains arising during the period |  | $ | 0 |  |  | $ | 1 |
Less: Reclassification of gains included in net income |  |  | (1 | ) |  |  | 0 |
|  |  | (1 | ) |  |  | 1 |
Deferred Taxes on Unrealized Gains: |  |  |  |  |  |  |  |
Increase in deferred taxes on unrealized gains arising during the period |  |  | 0 |  |  |  | 0 |
Less: Reclassification of taxes on gains included in net income |  |  | 0 |  |  |  | 0 |
|  |  | 0 |  |  |  | 0 |
Net Change in Accumulated Other Comprehensive Income (Loss) |  | $ | (1 | ) |  | $ | 1 |

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