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Property and Equipment (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Property, Plant and Equipment [Abstract]          
Gross carrying amount $ 18,715,567   $ 18,715,567   $ 18,628,762
Accumulated depreciation (18,297,400)   (18,297,400)   (18,194,827)
Property and Equipment, net 418,167   418,167   $ 433,935
Depreciation expense $ 62,910 $ 77,697 $ 196,736 $ 236,007