Note 10 - Income Taxes (Details) (USD $)	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Note 10 - Income Taxes (Details) [Line Items]
Unrecognized Tax Benefits	$ 170,000		$ 148,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	35,000		28,000
Unrecognized Tax Benefits, Interest on Income Taxes Expense	5,000	2,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 2,000	$ 3,000
Consolidated U.S. Federal Tax Return Filing Threshold [Member] \| Minimum [Member]
Note 10 - Income Taxes (Details) [Line Items]
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest		80.00%

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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 22

-Article 12

+ Details

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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- Definition

Amount of interest expense for an underpayment of income taxes.

+ References

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