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Investments - Schedule of maturities (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Cost |  |
Less than 1 year | $ 471,139 |
1 to 3 years | 2,258,686 |
Total | 2,729,825 | $ 6,406,062
Fair Value |  |
Less than 1 year | 480,478 |
1 to 3 years | 2,287,809 |
Total | $ 2,768,287 | $ 6,349,915

X
- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the third fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Fair value of available-for-sale debt securities maturing in the second fiscal year through the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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