Note 7 - Investment Securities (Details) - Gross Realized Losses on Equity and Debt Securities (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Note 7 - Investment Securities (Details) - Gross Realized Losses on Equity and Debt Securities [Line Items]
Gross Realezed Gains	$ 181,000	$ 303,000	$ 1,188,000	$ 862,000
Gross Realized Losses	(1,000)		(101,000)
Other-than-temporary impairment losses			0	(43,000)
Net Gains	180,000	303,000	1,087,000	819,000
Equity Securities [Member]
Note 7 - Investment Securities (Details) - Gross Realized Losses on Equity and Debt Securities [Line Items]
Gross Realezed Gains	181,000	303,000	1,051,000	672,000
Gross Realized Losses			(6,000)
Other-than-temporary impairment losses				(43,000)
Net Gains	181,000	303,000	1,045,000	629,000
Debt Securities [Member]
Note 7 - Investment Securities (Details) - Gross Realized Losses on Equity and Debt Securities [Line Items]
Gross Realezed Gains			137,000	190,000
Gross Realized Losses	(1,000)		(95,000)
Net Gains	$ (1,000)		$ 42,000	$ 190,000