16. Stock options (Tables)

12 Months Ended

Dec. 31, 2012

Stock Options Tables

Schedule stock option activity

	2012						2011						2010
	Number of options			Weighted average exercise price			Number of options			Weighted average exercise price			Number of options			Weighted average exercise price
				US$						US$						US$
Outstanding, beginning of year		36,255			3.36			46,182			3.36			94,958			4.68
Granted		-			-			-			-			-			-
Cancelled/Expired		(36,255	)		(3.36	)		(9,927	)		(3.47	)		(39,517	)		(6.38	)
Exercised		-			-			-			-			(9,259	)		(3.52	)
Outstanding, end of year		-			-			36,255			3.36			46,182			3.36
Exercisable, end of year		-			-			36,255			3.36			46,182			3.36