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Note 19 - Dividend payable (Detail) (USD $)	3 Months Ended	6 Months Ended
Note 19 - Dividend payable (Detail) (USD $)	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Preferred Stock, Dividend Rate, Percentage		10.00%
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)		$ 2.5
Payments of Ordinary Dividends, Preferred Stock and Preference Stock	$ 112,000	$ 5,000	$ 283,000

Cash outflow in the form of ordinary dividends to preferred shareholders, generally out of earnings.

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- Definition

The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

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