Note 9 - Income Taxes (Detail) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 403,000		$ 403,000		$ 442,000
Income Tax Expense Benefit Period Increase Decrease			41,000
Income Tax Expense (Benefit)	808,000	922,000	977,000	1,018,000
Effective Income Tax Rate, Continuing Operations			10.50%		56.50%
Unrecognized Tax Benefits	9,400,000		9,400,000		9,600,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	2,700,000		2,700,000		3,000,000
Unrecognized Tax Benefits In Long Term Liabilities			$ 3,100,000

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References+ Details

- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References+ Details