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Note 16 - Subsequent Event (Details Textual) - USD ($) $ in Millions		3 Months Ended
	Oct. 26, 2015	Dec. 31, 2015	Sep. 30, 2015
Subsequent Event [Member] | Maximum [Member] | Prime Rate [Member] | 2015 Credit Agreement [Member]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Subsequent Event [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | 2015 Credit Agreement [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%
Subsequent Event [Member] | Minimum [Member] | Prime Rate [Member] | 2015 Credit Agreement [Member]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Subsequent Event [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | 2015 Credit Agreement [Member]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Subsequent Event [Member] | 2015 Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 60.0
Subsequent Event [Member]
Letters of Credit Outstanding, Amount	$ 2.1
2015 Credit Agreement [Member] | Scenario, Forecast [Member]
Interest Expense, Debt		$ 0.4
Letters of Credit Outstanding, Amount			$ 2.1

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.8)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Period Type:	duration

X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.19(b),22(b))



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

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- Details

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