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

9 Months Ended

Sep. 30, 2015

Disclosure Text Block [Abstract]

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

(in thousands)	Fair value at September 30, 2015
	Total		Level 1		Level 2		Level 3
Assets
Investment securities available for sale
U.S. Treasury and other U.S. government obligations	$	100,000	$	100,000	$	-	$	-
Government sponsored enterprise obligations		186,810		-		186,810		-
Mortgage-backed securities - government agencies		154,347		-		154,347		-
Obligations of states and political subdivisions		62,508		-		62,508		-
Corporate equity securities		701		701		-		-
Total investment securities available for sale		504,366		100,701		403,665		-
Interest rate swaps		487		-		487		-
Total assets	$	504,853	$	100,701	$	404,152	$	-
Liabilities
Interest rate swaps	$	848	$	-	$	848	$	-

(in thousands)	Fair value at December 31, 2014
	Total		Level 1		Level 2		Level 3
Assets
Investment securities available for sale
U.S. Treasury and other U.S. government obligations	$	70,000	$	70,000	$	-	$	-
Government sponsored enterprise obligations		204,986		-		204,986		-
Mortgage-backed securities - government agencies		174,270		-		174,270		-
Obligations of states and political subdivisions		62,834		-		62,834		-
Corporate equity securities		966		966		-		-
Total investment securities available for sale		513,056		70,966		442,090		-
Interest rate swaps		425		-		425		-
Total assets	$	513,481	$	70,966	$	442,515	$	-
Liabilities
Interest rate swaps	$	401	$	-	$	401	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

(in thousands)	Fair value at September 30, 2015								Losses for 9 month
									period ended
	Total		Level 1		Level 2		Level 3		September 30, 2015
Impaired loans	$	5,132	$	-	$	-	$	5,132	$	(1,147	)
Other real estate owned		3,569		-		-		3,569		-
Total	$	8,701	$	-	$	-	$	8,701	$	(1,147	)

(in thousands)	Fair value at December 31, 2014								Losses for 9 month
									period ended
	Total		Level 1		Level 2		Level 3		September 30, 2014
Impaired loans	$	6,449	$	-	$	-	$	6,449	$	(1,148	)
Other real estate owned		5,032		-		-		5,032		(25	)
Total	$	11,481	$	-	$	-	$	11,481	$	(1,173	)

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	$	5,132	Appraisal	Appraisal discounts (%)		6.4	%
Other real estate owned		3,569	Appraisal	Appraisal discounts		14.6