Note 6 - Deposits (Details) - USD ($)	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Disclosure Text Block [Abstract]
Deposits	$ 2,278,794,000	$ 2,276,915,000
Increase (Decrease) in Deposits	$ 1,900,000
Percentage of Increase in Aggregate Deposits	0.10%