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Marketable Securities (Details - Marketable Securities) | 9 Months Ended
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Sep. 30, 2021 USD ($)
Net Investment Income [Line Items] |
Adjusted Cost | $ 125,692,272
Unrealized Loss | (351,936)
Fair Value | 125,340,336
Corporate Bond Securities [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 50,870,232
Unrealized Loss | (140,716)
Fair Value | 50,729,516
US Treasury Securities [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 27,074,769
Unrealized Loss | (62,950)
Fair Value | 27,011,819
U S Agency And Government Sponsored Securities [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 6,898,275
Unrealized Loss | (12,234)
Fair Value | 6,886,041
US Treasury Notes Securities [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 15,549,377
Unrealized Loss | (60,999)
Fair Value | 15,488,378
Asset-backed Securities [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 24,301,617
Unrealized Loss | (75,488)
Fair Value | 24,226,129
Commercial Paper [Member] |
Net Investment Income [Line Items] |
Adjusted Cost | 998,002
Unrealized Loss | 451
Fair Value | $ 998,453

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- Definition Amount of unrealized gain (loss) on investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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