Note 8 - Deposits (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Summary of Deposits and Percentage Change in Deposits [Table Text Block]

	December 31, 2019					December 31, 2018					Percent Increase
	Balance		%			Balance		%			(Decrease)
Noninterest-bearing demand	$	924,916,000		34.4	%	$	889,784,000		36.1	%		3.9	%
Interest-bearing checking		332,373,000		12.3			339,089,000		13.8			(2.0	)
Money market		509,368,000		18.9			434,333,000		17.6			17.3
Savings		269,318,000		10.0			317,014,000		12.9			(15.0	)
Time, under $100,000		198,123,000		7.4			160,092,000		6.5			23.8
Time, $100,000 and over		322,827,000		12.0			210,164,000		8.5			53.6
Total local deposits		2,556,925,000		95.0			2,350,476,000		95.4			8.8
Out-of-area time, under $100,000		0		0.0			0		0.0			0.0
Out-of-area time, $100,000 and over		133,459,000		5.0			113,232,000		4.6			17.9
Total out-of-area deposits		133,459,000		5.0			113,232,000		4.6			17.9
Total deposits	$	2,690,384,000		100.0	%	$	2,463,708,000		100.0	%		9.2	%

Contractual Maturities of Certificates of Deposits [Table Text Block]

	2019		2018
In one year or less	$	360,395,000	$	204,253,000
In one to two years		173,512,000		167,484,000
In two to three years		82,480,000		58,671,000
In three to four years		16,019,000		36,690,000
In four to five years		22,003,000		16,390,000
Total certificates of deposit	$	654,409,000	$	483,488,000

Contractual Maturities of Certificates of Deposits of More than Specified Amount [Table Text Block]

	2019		2018
Up to three months	$	100,635,000	$	34,367,000
Three months to six months		59,838,000		41,939,000
Six months to twelve months		93,691,000		57,137,000
Over twelve months		202,122,000		189,953,000
Total certificates of deposit	$	456,286,000	$	323,396,000