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Note 7 - Income Taxes (Detail) - Summary reconciliation reported amount of income tax expense to the amount of income tax expense under federal statutory tax rates: (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 15 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Tax benefit at the U.S. federal statutory rate (in Dollars) $ (2,526) $ (1,323)  
Tax benefit at the U.S. federal statutory rate 35.00% 35.00% 35.00%
State franchise and income tax based on income, net of refunds and federal benefits (in Dollars) (115) (15)  
State franchise and income tax based on income, net of refunds and federal benefits 1.60% 0.40%  
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling ownership interests (in Dollars) (59) (2,694)  
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling ownership interests 0.80% 71.20%  
Non-taxable interest income (in Dollars) (80) (122)  
Non-taxable interest income 1.10% 3.20%  
Other permanent differences (in Dollars) (20) 178  
Other permanent differences 0.30% (4.60%)  
Income tax benefit (in Dollars) $ (2,800) $ (3,976)  
Income tax benefit 38.80% 105.20%