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Note 16 - Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 16 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 1,600	$ 1,300	$ 822
Director [Member] | Interest [Member]
Note 16 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 427
Limited Liability Company A [Member]
Note 16 - Related Party Transactions (Details) [Line Items]
Ownership Interest In Trust	85.00%
Limited Liability Company B [Member]
Note 16 - Related Party Transactions (Details) [Line Items]
Ownership Interest In Trust	51.00%
Mr Rogers [Member]
Note 16 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	$ 1,100

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- References

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Represents the percentage interest in a trust for the benefit of an executive officer's children.

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Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

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-Name Accounting Standards Codification
-Topic 850
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
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