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Fair Value of Financial Instruments - Schedule of Investment Income (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Fair Value Disclosures [Abstract]        
Interest and dividends accrued and paid $ 116,371 $ 103,777 $ 364,414 $ 242,625
Realized gains 58,068 2,788 68,418 11,125
Investment income, net $ 174,439 $ 106,565 $ 432,832 $ 253,750