Note 29 - Share-based compensation expenses (Detail) - Options issued and outstanding (USD $)	9 Months Ended
	Sep. 30, 2012
Options Outstanding [Member] | Begining Balance [Member]
Balance, December 31, 2011 (audited)	939,440
Balance, December 31, 2011 (audited)	9 years 186 days
Balance, December 31, 2011 (audited) (in Dollars per share)	$ 1.42
Balance, September 30, 2012 (unaudited)	9 years 186 days
Options Outstanding [Member] | Ending Balance [Member]
Balance, December 31, 2011 (audited)	8 years 277 days
Balance, September 30, 2012 (unaudited)	939,440
Balance, September 30, 2012 (unaudited)	8 years 277 days
Balance, September 30, 2012 (unaudited) (in Dollars per share)	$ 1.42
Options Exercisable [Member] | Begining Balance [Member]
Balance, December 31, 2011 (audited)	939,440
Balance, December 31, 2011 (audited)	9 years 186 days
Balance, December 31, 2011 (audited) (in Dollars per share)	$ 1.42
Balance, September 30, 2012 (unaudited)	9 years 186 days
Options Exercisable [Member] | Ending Balance [Member]
Balance, December 31, 2011 (audited)	8 years 277 days
Balance, September 30, 2012 (unaudited)	939,440
Balance, September 30, 2012 (unaudited)	8 years 277 days
Balance, September 30, 2012 (unaudited) (in Dollars per share)	$ 1.42