Goodwill and Other Intangible Assets (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 4,150,339		$ 4,150,339		$ 4,150,339
Other intangible assets:
Gross carrying amount	3,770,954		3,770,954		3,725,437
Accumulated amortization	(3,596,754)		(3,596,754)		(3,515,981)
Net carrying amount	174,200		174,200		$ 209,456
Amortization of intangible assets	$ 39,858	$ 40,758	$ 80,773	$ 82,235