Nature of Business (Details) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Nature of Business (Textual)
Number of active business segments	2
Number of active grants	2
Cash and cash equivalents	$ 4,431,288	$ 4,156,749	$ 5,996,668	$ 7,451,714
Net decrease in cash and cash equivalents	(1,565,380)	(3,294,965)
Percentage decrease in cash and cash equivalents	26.00%
Working capital, carrying value	3,629,811		5,696,444
Decrease in working capital	2,066,633
Percentage decrease in working capital	36.00%
Net cash used in operating activities	(1,560,625)	(3,506,317)
Decrease in cash used in operating activities	1,945,692
Active grant funding available	5,000,000
Proceeds from net operating losses			$ 574,157
Reverse stock split, Ratio	1-for-20