Note 31 - Share-based compensation expenses (Detail) - Options issued and outstanding (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Options Outstanding [Member] Begining Balance [Member]	Dec. 31, 2011 Options Outstanding [Member] Ending Begining Balance [Member]	Dec. 31, 2012 Options Outstanding [Member] Ending Balance [Member]	Dec. 31, 2011 Options Outstanding [Member]	Dec. 31, 2011 Options Exercisable [Member] Begining Balance [Member]	Dec. 31, 2011 Options Exercisable [Member] Ending Begining Balance [Member]	Dec. 31, 2012 Options Exercisable [Member] Ending Balance [Member]	Dec. 31, 2011 Options Exercisable [Member]
Balance, January 1, 2011	54,000
Balance, January 1, 2011	3 years 335 days	9 years 186 days	8 years 186 days
Balance, January 1, 2011 (in Dollars per share)	$ 5.00
Balance, January 1, 2011					27,000
Balance, January 1, 2011					3 years 335 days	9 years 186 days	8 years 186 days
Balance, January 1, 2011 (in Dollars per share)					$ 5.00
Granted/Vested				885,440
Granted/Vested				10 years
Granted/Vested (in Dollars per share)				$ 1.20
Granted/Vested								912,440
Granted/Vested								9 years 292 days
Granted/Vested (in Dollars per share)								$ 1.31
Balance, December 31, 2011		939,440	939,440
Balance, December 31, 2011	3 years 335 days	9 years 186 days	8 years 186 days
Balance, December 31, 2011 (in Dollars per share)		$ 1.42	$ 1.42
Balance, December 31, 2011						939,440	939,440
Balance, December 31, 2011					3 years 335 days	9 years 186 days	8 years 186 days
Balance, December 31, 2011 (in Dollars per share)						$ 1.42	$ 1.42
Balance, December 31, 2012		939,440	939,440
Balance, December 31, 2012	3 years 335 days	9 years 186 days	8 years 186 days
Balance, December 31, 2012 (in Dollars per share)		$ 1.42	$ 1.42
Balance, December 31, 2012						939,440	939,440
Balance, December 31, 2012					3 years 335 days	9 years 186 days	8 years 186 days
Balance, December 31, 2012 (in Dollars per share)						$ 1.42	$ 1.42