Note 9. Stock Warrants (Detail) - Stock Warrants Activity (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 08, 2015
Beginning balance	1,235,877	1,498,377
Beginning balance (in Dollars per Item)	0.35	0.36	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	0	(262,500)
Stock warrants exercised (in Dollars per share)	$ 0	$ 0.41
Ending balance	1,235,877	1,235,877
Ending balance (in Dollars per Item)	0.35	0.35	1.21