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Marketable Securities (Tables) | 9 Months Ended
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Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale and Equity Securities | The following tables show the Company’s available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category as of September 30, 2022 and December 31, 2021, respectively:
|  | September 30, 2022
Marketable Securities: |  | Adjusted Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Mutual and money market funds |  | $ | 32,922 |  |  | $ | 220 |  |  | $ | (1,661) |  |  | $ | 31,481 |
Corporate bonds |  | 9,885 |  |  | — |  |  | (707) |  |  | 9,178 |
Government securities - U.S. |  | 3,827 |  |  | — |  |  | (369) |  |  | 3,458 |
Other fixed-income securities |  | 1,691 |  |  | — |  |  | (48) |  |  | 1,643 |
Total |  | $ | 48,325 |  |  | $ | 220 |  |  | $ | (2,785) |  |  | $ | 45,760 |
|  | December 31, 2021
Marketable Securities: |  | Adjusted Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Mutual and money market funds |  | $ | 78,331 |  |  | $ | 813 |  |  | $ | (1,046) |  |  | $ | 78,098 |
Corporate bonds |  | 16,478 |  |  | 94 |  |  | (93) |  |  | 16,479 |
Government securities - U.S. |  | 9,530 |  |  | 39 |  |  | (98) |  |  | 9,471 |
Other fixed-income securities |  | 2,473 |  |  | 2 |  |  | (10) |  |  | 2,465 |
Total |  | $ | 106,812 |  |  | $ | 948 |  |  | $ | (1,247) |  |  | $ | 106,513 |
Schedule of Contractual Maturity Dates | The following table summarizes the estimated fair value of the Company’s investments in marketable debt securities, accounted for as available-for-sale debt securities and classified by the contractual maturity date of the securities as of September 30, 2022:
|  | Maturities
Marketable Debt Securities: |  | Less than 1 Year |  | 1-5 Years |  | 5-10 Years |  | Greater than 10 Years |  | Total
Corporate bonds |  | $ | 1,602 |  |  | $ | 7,576 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,178 |
Government securities - U.S. |  | — |  |  | 1,992 |  |  | 600 |  |  | 866 |  |  | 3,458 |
Other fixed-income securities |  | — |  |  | 1,451 |  |  | 192 |  |  | — |  |  | 1,643 |
Total |  | $ | 1,602 |  |  | $ | 11,019 |  |  | $ | 792 |  |  | $ | 866 |  |  | $ | 14,279 |
Schedule of Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value | The following table shows the gross unrealized losses and fair value of the Company’s available-for-sale debt securities at September 30, 2022. The unrealized losses in the table below are driven by factors other than credit risk. The Company does not intend to sell the investments and it is not more likely than not that it will be required to sell the investments before recovery of their amortized cost bases.
|  | Less than 12 months |  | Greater than 12 months |  | Total
Marketable Debt Securities: |  | Fair value |  | Unrealized Losses |  | Fair value |  | Unrealized Losses |  | Fair value |  | Unrealized Losses
Corporate bonds |  | $ | 6,264 |  |  | $ | 440 |  |  | $ | 2,914 |  |  | $ | 267 |  |  | $ | 9,178 |  |  | $ | 707 |
Government securities - U.S. |  | 1,042 |  |  | 63 |  |  | 2,416 |  |  | 306 |  |  | 3,458 |  |  | 369 |
Other fixed-income securities |  | 1,065 |  |  | 17 |  |  | 578 |  |  | 31 |  |  | 1,643 |  |  | 48 |
Total |  | $ | 8,371 |  |  | $ | 520 |  |  | $ | 5,908 |  |  | $ | 604 |  |  | $ | 14,279 |  |  | $ | 1,124 |

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