Note 9 - Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Summary of Comparative Data of Securities Sold under Agreements to Repurchase [Table Text Block]

	2016			2015			2014
	(Dollars in thousands)
Average amount outstanding during the year (1)	$	381,967		$	400,822		$	629,315
Maximum amount outstanding at month-end (2)		400,000			400,000			700,000
Balance, December 31		350,000			400,000			450,000
Rate, December 31		4.06	%		3.89	%		3.85	%
Weighted average interest rate for the year		4.01	%		3.95	%		3.92	%