Note 4 - Securities (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

(In thousands)	Amortized		Unrealized					Fair
December 31, 201 8	cost		Gains		Losses			value
Government sponsored enterprise obligations	$	264,234	$	156	$	(3,351	)	$	261,039
Mortgage-backed securities - government agencies		149,748		282		(3,753	)		146,277
Obligations of states and political subdivisions		29,760		107		(188	)		29,679
Total securities available for sale	$	443,742	$	545	$	(7,292	)	$	436,995

(In thousands)	Amortized		Unrealized					Fair
December 31, 201 7	cost		Gains		Losses			value
U.S. Treasury and other U.S. government obligations	$	149,996	$	–	$	(12	)	$	149,984
Government sponsored enterprise obligations		214,852		474		(1,482	)		213,844
Mortgage-backed securities - government agencies		163,571		383		(2,447	)		161,507
Obligations of states and political subdivisions		48,987		365		(163	)		49,189
Total securities available for sale	$	577,406	$	1,222	$	(4,104	)	$	574,524

Investments Classified by Contractual Maturity Date [Table Text Block]

(In thousands)
Securities available for sale	Amortized cost		Fair value
Due within 1 year	$	120,523	$	120,239
Due after 1 but within 5 years		64,141		63,260
Due after 5 but within 10 years		8,059		7,899
Due after 10 years		101,271		99,320
Mortgage-backed securities - government agencies		149,748		146,277
Total securities available for sale	$	443,742	$	436,995

Schedule of Unrealized Loss on Investments [Table Text Block]

(In thousands)	Less than 12 months					12 months or more					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
December 31, 201 8	value		losses			value		losses			value		losses
Government sponsored enterprise obligations	$	96,740	$	(38	)	$	149,320	$	(3,313	)	$	246,060	$	(3,351	)
Mortgage-backed securities - government agencies		3,108		(5	)		120,848		(3,748	)		123,956		(3,753	)
Obligations of states and political subdivisions		814		(1	)		17,639		(187	)		18,453		(188	)
Total temporarily impaired securities	$	100,662	$	(44	)	$	287,807	$	(7,248	)	$	388,469	$	(7,292	)
December 31, 201 7
U.S. Treasury and U.S. obligations	$	149,984	$	(12	)	$	–	$	–		$	149,984	$	(12	)
Government sponsored enterprise obligations		95,139		(586	)		49,870		(896	)		145,009		(1,482	)
Mortgage-backed securities - government agencies		69,290		(440	)		67,047		(2,007	)		136,337		(2,447	)
Obligations of states and political subdivisions		22,366		(107	)		5,064		(56	)		27,430		(163	)
Total temporarily impaired securities	$	336,779	$	(1,145	)	$	121,981	$	(2,959	)	$	458,760	$	(4,104	)