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Cash, Cash Equivalent, and Investments (Tables) | 6 Months Ended
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Jun. 30, 2020
Cash and Cash Equivalents [Abstract] |
Schedule of Cash, Available-for-sale Securities, Short-term and Long-term Investment Securities | The following table shows the Company’s cash, available-for-sale securities, and short-term and long-term investment securities by major security type as of June 30, 2020 and December 31, 2019:
| June 30, 2020 (Unaudited) |  |  |  |  |  |  |  |
|  |  |  |  | Gross |  | Gross |  |
| Level |  |  |  | Unrealized |  | Unrealized |  |
| (1) |  | Fair Value |  | Holding Gains |  | Holding Losses |  | Adjusted Cost
Cash and Cash Equivalents |  |  |  |  |  |  |  |  |
Cash |  |  | $ | 258,470 |  |  | $ | — |  |  | $ | — |  |  | $ | 258,470 |
Money Market Funds | 1 |  | 11,523,079 |  |  | — |  |  | — |  |  | 11,523,079 |
Subtotal |  |  | 11,781,549 |  |  | — |  |  | — |  |  | 11,781,549 |
Short-Term Investment Securities (2) |  |  |  |  |  |  |  |  |
Corporate Bonds (4) | 2 |  | 20,145,612 |  |  | 96,852 |  |  | (4,259) |  |  | 20,053,019 |
Total |  |  | $ | 31,927,161 |  |  | $ | 96,852 |  |  | $ | (4,259) |  |  | $ | 31,834,568 |
| December 31, 2019 (Audited) |  |  |  |  |  |  |  |
|  |  |  |  | Gross |  | Gross |  |
| Level |  |  |  | Unrealized |  | Unrealized |  |
| (1) |  | Fair Value |  | Holding Gains |  | Holding Losses |  | Adjusted Cost
Cash and Cash Equivalents |  |  |  |  |  |  |  |  |
Cash |  |  | $ | 1,010,510 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,010,510 |
Money Market Funds | 1 |  | 3,813,034 |  |  | — |  |  | — |  |  | 3,813,034 |
Subtotal |  |  | 4,823,544 |  |  | — |  |  | — |  |  | 4,823,544 |
Short-Term Investment Securities (2) |  |  |  |  |  |  |  |  |
Corporate Bonds (4) | 2 |  | 29,387,053 |  |  | 5,898 |  |  | (17,991) |  |  | 29,399,146 |
Long-Term Investment Securities (3) |  |  |  |  |  |  |  |  |
Corporate Bonds (4) | 2 |  | 1,528,190 |  |  | 16,554 |  |  | — |  |  | 1,511,636 |
Total |  |  | $ | 35,738,787 |  |  | $ | 22,452 |  |  | $ | (17,991) |  |  | $ | 35,734,326 |
_________________ Notes: (1) Definition of the three-level fair value hierarchy: •Level 1 - Quoted prices (unadjusted) in active markets for identical assets or liabilities •Level 2 - Other inputs that are directly or indirectly observable in the markets •Level 3 - Inputs that are generally unobservable (2) Short-term investment securities will mature within 12 months or less, from the applicable reporting date. (3) Long-term investment securities will mature between 12 and 18 months, from the applicable reporting date. (4) The premium paid to purchase held-to-maturity investment securities was $24,771 and $23,308 for the three months ended June 30, 2020 and 2019, respectively. The premium paid to purchase held-to-maturity investment securities was $221,156 and $104,163 for the six months ended June 30, 2020 and 2019, respectively. The premium paid to purchase held-to-maturity investment securities was $233,550 for the year ended December 31, 2019.

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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