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Note 9 - Short-Term Borrowings (Details) - Outstanding Balances and Related Information of Short-Term Borrowings (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Outstanding Balances and Related Information of Short-Term Borrowings [Abstract]
Balance at year-end	$ 10,809	$ 6,538	$ 7,392
Average balance outstanding	8,806	7,005	7,276
Maximum month-end balance	$ 17,351	$ 7,458	$ 7,552
Weighted-average rate at year-end	1.44%	2.97%	3.14%
Weighted-average rate during the year	3.15%	3.73%	3.23%

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Short-term borrowings average balance outstanding.

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Short-term borrowings maximum month-end balance.

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The effective interest rate at the end of the reporting period.

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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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Weighted average interest rate of short-term debt outstanding.

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