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Note 16 - Hedging Activities (Details) - USD ($)	1 Months Ended
	Jan. 31, 2016	Feb. 29, 2012	Jan. 26, 2016	Jan. 25, 2016	Dec. 31, 2015	Dec. 31, 2014
Note 16 - Hedging Activities (Details) [Line Items]
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust		$ 32,000,000			$ 55,154,000	$ 54,472,000
Fair Value of Interest Rate Swap Agreement Liability					$ 300,000	$ 300,000
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Note 16 - Hedging Activities (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		2.18%
Derivative, Notional Amount		$ 32,000,000
Junior Subordinated Debt [Member] | Subsequent Event [Member] | London Interbank Offered Rate (LIBOR) [Member]
Note 16 - Hedging Activities (Details) [Line Items]
Derivative, Notional Amount			$ 21,000,000	$ 32,000,000
Debt Instrument, Repurchased Face Amount			11,000,000
Interest Expense, Debt	$ 154,000
Debt Instrument, Repurchase Amount			$ 11,000,000

X

- Definition

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

+ References

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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X

- Definition

Fair value disclosure of the liability related to a derivative interest rate swap agreement.

+ References

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- Definition

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

+ References

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- Definition

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+ References

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- 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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- Definition

Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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