Note 10 - Borrowings (Details) - Short-Term and Long-Term Borrowings (USD $) In Thousands, unless otherwise specified	16 Months Ended	37 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 02, 2013	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2013
At Year-End:
Subordinated notes	$ 9,300us-gaap_SubordinatedDebt		$ 9,300us-gaap_SubordinatedDebt
Subordinated notes, rate	8.50%	10.00%
Current Portion [Member] \| Average Daily Balance [Member]
At Year-End:
Average daily balance, federal home loan bank			7,288	503
Average daily balance, federal home loan bank, rate			0.42%	0.41%
Current Portion [Member] \| Month End Balance [Member] \| Maximum [Member]
At Year-End:
Maximum month-end balance, federal home loan bank	100,000		100,000	10,000
Maximum month-end balance, federal home loan bank, rate	0.38%		0.38%	2.98%
At Year-End:
Federal Home Loan Bank	0.38%		0.38%	2.98%
Year End [Member]
At Year-End:
Customer repurchase agreements and federal funds purchased	61,120		61,120	101,338	80,471
Customer repurchase agreements and federal funds purchased, rate	0.25%		0.25%	0.31%	0.28%
Maximum month-end balance, federal home loan bank, rate	2.62%		2.62%	2.43%	2.46%
Total	61,120		61,120	101,338	80,471
At Year-End:
Federal Home Loan Bank	40,000		40,000	30,000	30,000
Federal Home Loan Bank	2.62%		2.62%	2.43%	2.46%
Subordinated notes	79,300		79,300	9,300	9,300
Subordinated notes, rate			6.40%	10.00%	8.50%
Average Daily Balance [Member]
At Year-End:
Customer repurchase agreements and federal funds purchased	63,490		63,490	96,141	94,566
Customer repurchase agreements and federal funds purchased, rate	0.23%		0.23%	0.34%	0.27%
Average daily balance, federal home loan bank			39,205	37,404	30,000
Average daily balance, federal home loan bank, rate			2.00%	2.90%	2.46%
At Year-End:
Subordinated notes	37,875		37,875	9,300	9,300
Subordinated notes, rate			6.59%	10.00%	9.64%
Month End Balance [Member] \| Maximum [Member]
At Year-End:
Customer repurchase agreements and federal funds purchased	80,471		80,471	111,580	106,975
Customer repurchase agreements and federal funds purchased, rate	0.28%		0.28%	0.34%	0.23%
Maximum month-end balance, federal home loan bank	122,500		122,500	40,000	30,000
Maximum month-end balance, federal home loan bank, rate	0.68%		0.68%	2.96%	2.46%
At Year-End:
Federal Home Loan Bank	0.68%		0.68%	2.96%	2.46%
Subordinated notes	$ 79,300		$ 79,300	$ 9,300	$ 9,300
Subordinated notes, rate			6.52%	10.00%	10.00%

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- Definition

Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

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-Number 210

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Fair value portion of federal funds sold and securities borrowed or purchased under agreements to resell.

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- Definition

The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date.

+ References

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The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date.

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The maximum balance outstanding at any month end during the period as of the Balance Sheet date.

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- Definition

Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Stated interest rate of the subordinated debt.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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