Note 7 - Income Taxes (Details Textual) (USD $)	3 Months Ended	6 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Income Tax Expense (Benefit)	$ (675,000)us-gaap_IncomeTaxExpenseBenefit	$ 20,000us-gaap_IncomeTaxExpenseBenefit	$ (700,000)us-gaap_IncomeTaxExpenseBenefit	$ 10,000us-gaap_IncomeTaxExpenseBenefit
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(171,000)	73,000	237,000	(577,000)
Effective Income Tax Rate Reconciliation, Percent			(295.00%)	(2.00%)
Liability for Uncertain Tax Positions, Noncurrent	3,121,000		3,121,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense			$ 44,000

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 235

-SubTopic 10

-Section S99

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (SX 210.4-08.(h))

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Income Tax Expense (or Benefit)

-URI http://asc.fasb.org/extlink&oid=6515339

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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The noncurrent portion of the amount recognized for uncertain tax positions as of the balance sheet date.

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

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-Name Accounting Standards Codification

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Amount of expense 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.

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

-Publisher FASB

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