Note 10. Warrants (Detail) - Common Stock Warrant Liability (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Beginning balance, January 1, 2012	$ 166,398
Loss from the adjustment for the change in fair value included in net loss	1,250,850	42,482
Ending balance, September 30, 2012	$ 1,417,248