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Marketable Securities | 3 Months Ended
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Mar. 31, 2022
Marketable Securities [Abstract] |
Marketable Securities | 4. Marketable Securities Marketable securities are classified as available-for-sale. The following tables summarize the amortized cost, gross unrealized gains and losses, and the fair value as of March 31, 2022 and December 31, 2021:
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Market
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value
| December 31, 2021
Government bonds | $ | 28,453,161 |  | $ | 82 |  | $ | (18,255) |  | $ | 28,434,988
Corporate bonds |  | 29,874,696 |  |  | - |  |  | (21,928) |  |  | 29,852,768
Commercial paper |  | 43,486,025 |  |  | - |  |  | - |  |  | 43,486,025
Marketable securities | $ | 101,813,882 |  | $ | 82 |  | $ | (40,183) |  | $ | 101,773,781
| March 31, 2022
Government bonds | $ | 37,488,888 |  | $ | 33 |  | $ | (86,090) |  | $ | 37,402,831
Corporate bonds |  | 26,549,151 |  |  | 15 |  |  | (68,035) |  |  | 26,481,132
Commercial paper |  | 39,481,194 |  |  | - |  |  | - |  |  | 39,481,194
Marketable securities | $ | 103,519,232 |  | $ | 48 |  | $ | (154,125) |  | $ | 103,365,156

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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