Note 9 - Income Taxes (Detail) (USD $)	Jun. 30, 2012	Dec. 31, 2008	Dec. 31, 2007
Deferred Tax Assets, Valuation Allowance	$ 48,266,000
Deferred Tax Assets, Net	2,659,000
Deferred Tax Asset Foreign Tax Credit	35,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	2,624,000
Unrecognized Tax Benefits	7,539,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	1,377,000
Income Tax Examination Proposed Gross Liability		251,000	7,114,000
Income Tax Examination Proposed Penalty			1,186,000
Income Tax Examination Estimated Interest		$ 35,000	$ 1,745,000