Goodwill and Other Intangible Assets (Details) - Intangible Assets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Intangible Assets [Abstract]
Total goodwill	$ 27,997,286	$ 25,726,239
Other intangible assets not subject to amortization:
Trade name	720,000	720,000
Total other intangible assets not subject to amortization	720,000	720,000
Other intangible assets subject to amortization:
Customer relationships	10,792,136	9,892,136
Software models	1,988,194	1,988,194
Noncompete agreement	130,000	1,339,535
Product databases	3,367,000	3,307,000
Trade names	500,000	480,000
Domain names	160,425	162,975
Total other intangible assets subject to amortization	16,937,755	17,169,840
Less accumulated amortization	(6,994,772)	(6,699,283)
Net other intangible assets subject to amortization	9,942,983	10,470,557
Total other intangible assets	$ 10,662,983	$ 11,190,557