Note 10. Stock Warrants (Detail) - Stock Warrants Activity (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 28, 2012	Dec. 08, 2010
Beginning balance	1,235,877	1,498,377	881,331
Beginning balance (in Dollars per Item)	0.35	0.36	0.01	1.21
Stock warrants granted	0	0
Stock warrants granted (in Dollars per share)	$ 0	$ 0
Stock warrants expired	0	0
Stock warrants expired (in Dollars per share)	$ 0	$ 0
Stock warrants exercised	(881,331)	(262,500)
Stock warrants exercised (in Dollars per share)	$ 0.01	$ 0.41
Ending balance	354,546	1,235,877	881,331
Ending balance (in Dollars per Item)	1.21	0.35	0.01	1.21