Note 6 - Securities Sold Under Agreements to Repurchase (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure Text Block [Abstract]

Schedule of Repurchase Agreements [Table Text Block]

	Nine Months Ended September 30, 2015			Twelve Months Ended December 31, 2014
Outstanding balance at end of period	$	158,149,000		$	167,569,000
Average interest rate at end of period		0.11	%		0.11	%
Average daily balance during the period	$	145,867,000		$	105,474,000
Average interest rate during the period		0.11	%		0.12	%
Maximum daily balance during the period	$	168,211,000		$	178,042,000