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Cash, Cash Equivalent, and Investments (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and Cash Equivalents | $ 4,823,544 | $ 2,386,314
Short term investments, adjusted cost | 29,399,146 | 38,816,441
Long term investments, adjusted cost | 1,511,636 | 0
Cash and Investment, fair value | 35,738,787 | 41,117,434
Investment, gross unrealized holding gain | 22,452 | 0
Investment, gross unrealized holding losses | (17,991) | (85,321)
Cash and Investment, adjusted cost | 35,734,326 | 41,202,755
Cash |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and Cash Equivalents | 1,010,510 | 1,048,272
Money Market Funds | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and Cash Equivalents | 3,813,034 | 1,338,042
Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Held-to-maturity, premium paid on purchase | 233,550 | 378,681
Corporate bonds | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Short term investments, fair value | 29,387,053 | 38,731,120
Short term investments, gross unrealized holding gain | 5,898 | 0
Short term investments, gross unrealized holding loss | (17,991) | (85,321)
Short term investments, adjusted cost | 29,399,146 | $ 38,816,441
Long term Investments, fair value | 1,528,190 |
Long term Investments, gross unrealized holding gain | 16,554 |
Long term Investments, gross unrealized holding loss | 0 |
Long term investments, adjusted cost | $ 1,511,636 |

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