Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accumulated depreciation of furniture, fixtures and equipment	$ 2,290,451	$ 2,158,647
Accumulated amortization of intangible assets	$ 36,090,371	$ 33,589,746
Common stock, par value	$ 0.02	$ 0.02
Common stock, shares authorized	101,000,000	101,000,000
Common stock, shares issued	11,228,905	11,156,571
Common stock, shares outstanding	11,228,905	11,156,571