Note 15 - Assets and Liabilities Measured and Reported at Fair Value (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

(In thousands)	Fair value at March 31, 2018
Assets	Total		Level 1		Level 2		Level 3
Investment securities available-for-sale
Government sponsored enterprise obligations	$	402,411	$	-	$	402,411	$	-
Mortgage-backed securities - government agencies		151,748		-		151,748		-
Obligations of states and political subdivisions		43,922		-		43,922		-
Total investment securities available-for-sale		598,081		-		598,081		-
Interest rate swaps		1,987		-		1,987		-
Total assets	$	600,068	$	-	$	600,068	$	-
Liabilities
Interest rate swaps	$	1,275	$	-	$	1,275	$	-

(In thousands)	Fair value at December 31, 2017
Assets	Total		Level 1		Level 2		Level 3
Investment securities available-for-sale
U.S. Treasury and other U.S. government obligations	$	149,984	$	149,984	$	-	$	-
Government sponsored enterprise obligations		213,844		-		213,844		-
Mortgage-backed securities - government agencies		161,507		-		161,507		-
Obligations of states and political subdivisions		49,189		-		49,189		-
Total investment securities available-for-sale		574,524		149,984		424,540		-
Interest rate swaps		579		-		579		-
Total assets	$	575,103	$	149,984	$	425,119	$	-
Liabilities
Interest rate swaps	$	259	$	-	$	259	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

(In thousands)	Fair value at March 31, 2018								Losses for 3 month
									period ended
	Total		Level 1		Level 2		Level 3		March 31, 2018
Impaired loans	$	5,918	$	-	$	-	$	5,918	$	(1,711	)
Other real estate owned		360		-		-		360		-
Total	$	6,278	$	-	$	-	$	6,278	$	(1,711	)

(in thousands)	Fair value at December 31, 2017								Losses for 3 month
									period ended
	Total		Level 1		Level 2		Level 3		March 31, 2017
Impaired loans	$	2,569	$	-	$	-	$	2,569	$	(452	)
Other real estate owned		2,640		-		-		2,640		-
Total	$	5,209	$	-	$	-	$	5,209	$	(452	)

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

				Significant	Weighted
	Fair		Valuation	unobservable	average of
(Dollars in thousands)	value		technique	input	input
Impaired loans - collateral dependent	$	5,918	Appraisal	Appraisal discounts		42.2	%
Other real estate owned		360	Appraisal	Appraisal discounts		10.0