Goodwill and Other Intangible Assets (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 4,150,339		$ 4,150,339
Other intangible assets:
Gross carrying amount	3,765,747		3,725,437
Accumulated amortization	(3,556,896)		(3,515,981)
Net carrying amount	208,851		$ 209,456
Amortization of intangible assets	$ 40,915	$ 41,477