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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [Abstract] |
Schedule of marketable security measured at fair value |
Schedule of marketable security measured at fair value |  |  |  |  |  |  |  |  |  |  |  |
|  | Level 1 |  |  | Level 2 |  |  | Total Fair Value |
Marketable investments: |  |  |  |  |  |  |  |  |  |  |  |
Corporate Bonds |  | $ | 31,099 |  |  | $ | 16,236 |  |  | $ | 47,335 |
U.S. Treasury |  |  | 24,153 |  |  |  | – |  |  |  | 24,153 |
Mortgage-Backed |  |  | – |  |  |  | 7,361 |  |  |  | 7,361 |
U.S. agency and government sponsored securities |  |  | – |  |  |  | 14,588 |  |  |  | 14,588 |
U.S. states and municipalities |  |  | – |  |  |  | 11,682 |  |  |  | 11,682 |
Asset-Backed |  |  | – |  |  |  | 6,406 |  |  |  | 6,406 |
Commercial paper |  |  | – |  |  |  | 998 |  |  |  | 998 |
Total |  | $ | 55,252 |  |  | $ | 57,271 |  |  | $ | 112,523 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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