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Note 14 - Income Taxes (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
Domestic Tax Authority [Member] | Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination, Year under Examination	2009
Domestic Tax Authority [Member] | Latest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination, Year under Examination	2013
Domestic Tax Authority [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 74.8
State and Local Jurisdiction [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 99.3

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

+ References

No definition available.

+ Details

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X

- Definition

Tax year being audited in the income tax examination, in CCYY format.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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