Property and Equipment (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Depreciation expense	$ 104,170	$ 89,310	$ 305,250	$ 249,801
Capital Lease Obligations	178,600		178,600
Capital Lease Obligations Incurred	0
Less: accumulated depreciation and amortization	(1,283,057)		(1,283,057)		(1,183,982)
Total assets	39,375,099		39,375,099		42,290,226
Leased Equipment [Member]
Depreciation expense	17,500	11,300	52,800	33,900
Equipment [Member]
Capital Lease Obligations	479,900		479,900		432,000
Less: accumulated depreciation and amortization	336,300		336,300		414,200
Capital Lease Obligations [Member]
Capital Lease Obligations	130,700		130,700
Total assets	$ 143,600		$ 143,600		$ 17,800