Note 5 - Loans (Details) - Activity Within the Troubled Debt Resturing Loans (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 5 - Loans (Details) - Activity Within the Troubled Debt Resturing Loans [Line Items]
New restructurings	$ 27,100,000
Accruing Troubled Debt Restructuring Member
Note 5 - Loans (Details) - Activity Within the Troubled Debt Resturing Loans [Line Items]
Beginning balance	144,695,000	120,016,000	136,800,000
New restructurings	21,382,000	53,958,000	60,863,000
Restructured loans restored to accrual status	6,851,000	8,356,000	709,000
Charge-offs	(78,000)	(251,000)	(2,341,000)
Payments	(52,362,000)	(5,159,000)	(46,313,000)
Restructured loans placed on nonaccrual	(2,891,000)	(32,225,000)	(28,969,000)
Expiration of loan concession			(733,000)
Ending balance	117,597,000	144,695,000	120,016,000
Non Accruing Troubled Debt Restructuring Member
Note 5 - Loans (Details) - Activity Within the Troubled Debt Resturing Loans [Line Items]
Beginning balance	47,731,000	50,870,000	28,146,000
New restructurings	6,226,000	12,304,000	13,269,000
Restructured loans restored to accrual status	(6,851,000)	(8,356,000)	(709,000)
Charge-offs	(2,124,000)	(4,182,000)	(7,303,000)
Payments	(4,295,000)	(33,931,000)	(3,355,000)
Foreclosures	(4,809,000)	(1,199,000)	(8,147,000)
Restructured loans placed on nonaccrual	2,891,000	32,225,000	28,969,000
Ending balance	$ 38,769,000	$ 47,731,000	$ 50,870,000