Property and Equipment (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Depreciation expense	$ 400,154	$ 334,665
Less: accumulated depreciation and amortization	1,377,960	1,183,982
Property and equipment, net	1,428,323	1,336,134
Gross property and equipment	2,806,283	2,520,116
Leased Equipment [Member]
Depreciation expense	66,700	43,000
Less: accumulated depreciation and amortization	350,200	414,200
Property and equipment, net	127,300	17,800
Equipment One [Member]
Depreciation expense	400,160	334,700
Less: accumulated depreciation and amortization	206,200	67,000
Gross property and equipment	206,900	69,100
Capital Lease Obligations [Member]
Capital Lease Obligations	176,200
Less: accumulated depreciation and amortization	130,700	7,700
Capital Leased Assets, Gross	477,500	432,000
Gross property and equipment	$ 130,700	$ 8,200