Note 8 - Deposits (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

	December 31, 201 7					December 31, 201 6					Percent Increase
	Balance		%			Balance		%			(Decrease)
Noninterest-bearing demand	$	866,380,000		34.3	%	$	810,600,000		34.1	%		6.9	%
Interest-bearing checking		387,758,000		15.4			377,929,000		15.9			2.6
Money market		427,119,000		16.9			272,051,000		11.5			57.0
Savings		327,530,000		13.0			344,988,000		14.5			(5.1	)
Time, under $100,000		152,294,000		6.0			146,169,000		6.2			4.2
Time, $100,000 and over		258,626,000		10.3			347,058,000		14.6			(25.5	)
Total local deposits		2,419,707,000		95.9			2,298,795,000		96.8			5.3
Out-of-area time, under $100,000		0		NM			0		NM			NM
Out-of-area time, $100,000 and over		102,658,000		4.1			76,190,000		3.2			34.7
Total out-of-area deposits		102,658,000		4.1			76,190,000		3.2			34.7
Total deposits	$	2,522,365,000		100.0	%	$	2,374,985,000		100.0	%		6.2	%

Contractual Maturities of Certificates of Deposits [Table Text Block]

	201 7		201 6
In one year or less	$	283,844,000	$	358,259,000
In one to two years		77,689,000		92,042,000
In two to three years		78,090,000		34,204,000
In three to four years		33,061,000		35,523,000
In four to five years		40,894,000		49,389,000
Total certificates of deposit	$	513,578,000	$	569,417,000

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

	201 7		201 6
Up to three months	$	50,258,000	$	101,444,000
Three months to six months		68,011,000		87,277,000
Six months to twelve months		96,951,000		79,656,000
Over twelve months		146,064,000		154,871,000
Total certificates of deposit	$	361,284,000	$	423,248,000