Note 29 - Share-based compensation expenses (Detail) - Options issued and outstanding (USD $)	3 Months Ended	6 Months Ended
Dec. 31, 2011	Jun. 30, 2012
Balance, December 31, 2011 (audited)	939,440
Balance, December 31, 2011 (audited)	9 years 186 days	9 years 3 days
Balance, December 31, 2011 (audited) (in Dollars per share)	$ 1.42
Balance, December 31, 2011 (audited)	939,440
Balance, December 31, 2011 (audited)	9 years 186 days	9 years 3 days
Balance, December 31, 2011 (audited) (in Dollars per share)	$ 1.42
Balance, June 30, 2012 (unaudited)		939,440
Balance, June 30, 2012 (unaudited)	9 years 186 days	9 years 3 days
Balance, June 30, 2012 (unaudited) (in Dollars per share)		$ 1.42
Balance, June 30, 2012 (unaudited)		939,440
Balance, June 30, 2012 (unaudited)	9 years 186 days	9 years 3 days
Balance, June 30, 2012 (unaudited) (in Dollars per share)		$ 1.42

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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