Note 14 - Fair Value of Financial Instruments and Non-financial Assets and Liabilities (Details Textual) - USD ($)	May. 18, 2012	Mar. 27, 2016
Interest Rate Swap [Member] \| Cash Flow Hedging [Member]
Derivative, Notional Amount	$ 50,000,000
Interest Rate Swap [Member]
Derivative, Notional Amount		$ 50,000,000
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge	5 years
Derivative, Swaption Interest Rate		1.06%

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fixed interest rate that will be received or paid upon exercise of the interest rate swaption contract.

+ References

No definition available.

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- Definition

Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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