Property and Equipment (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Property and Equipment (Textual)
Depreciation expense	$ 998,394	$ 1,070,931	$ 2,937,696	$ 2,895,246
Depreciation included in cost of revenues and operating expenses	$ 721,042	$ 958,920	$ 2,123,042	$ 2,506,920