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

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Repurchase Agreements [Table Text Block]

	Six Months Ended June 30, 2018			Twelve Months Ended December 31, 2017
Outstanding balance at end of period	$	94,573,000		$	118,748,000
Average interest rate at end of period		0.25	%		0.16	%
Average daily balance during the period	$	101,595,000		$	116,587,000
Average interest rate during the period		0.23	%		0.16	%
Maximum daily balance during the period	$	123,046,000		$	142,459,000