Note 11 - Income Taxes and Deferred Tax Asset/Liability (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	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Tax expense (benefit) at the U.S. federal statutory rate (in Dollars)	$ 5,997	$ (18,101)	$ 12,773
Tax expense (benefit) at the U.S. federal statutory rate	35.00%	35.00%	35.00%
State tax based on income, net of refunds and federal benefits (in Dollars)	(58)	(573)	879
State tax based on income, net of refunds and federal benefits	(0.30%)	1.10%	2.40%
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners (in Dollars)	(5,938)	(444)	(2,498)
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners	(34.70%)	0.90%	(6.80%)
Tax benefits of Domestic Production Activities Deduction (in Dollars)	(84)	(202)	(500)
Tax benefits of Domestic Production Activities Deduction	(0.50%)	0.40%	(1.40%)
Impairment associated with goodwill that is not amortizable for tax (in Dollars)		2,603
Impairment associated with goodwill that is not amortizable for tax		(5.00%)
Non-taxable interest income (in Dollars)	(529)	(376)	(494)
Non-taxable interest income	(3.10%)	0.70%	(1.40%)
Other permanent differences (in Dollars)	33	81	110
Other permanent differences	0.20%	(0.20%)	0.30%
Income tax expense (benefit) (in Dollars)	$ (579)	$ (17,012)	$ 10,270
Income tax expense (benefit)	(3.40%)	32.90%	28.10%