Note 9 - Borrowed Funds (Details) - Outstanding Advances (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Outstanding Advances [Abstract]
Within 90 days	$ 325,000	$ 475,000
Within 90 days	0.18%	0.06%
1 - 3 years	171,200
1 - 3 years	1.08%
4 - 5 years	25,000	46,200
4 - 5 years	1.13%	1.24%
	$ 521,200	$ 521,200
	0.52%	0.17%