Property and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Gross carrying amount	$ 18,576,492		$ 18,576,492		$ 18,563,071
Accumulated depreciation	(18,071,912)		(18,071,912)		(17,926,959)
Property and Equipment, net	504,580		504,580		$ 636,112
Depreciation expense	$ 71,441	$ 135,669	$ 158,310	$ 321,754