Note 12 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Years Ended December 31,
	2019		2018		2017
Stock options and SARs	$	407	$	984	$	1,093
Restricted stock		835		551		331
Performance shares(1)		243		729		240
Total share-based compensation expense	$	1,485	$	2,264	$	1,664
Related income tax benefit	$	262	$	282	$	229

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Years Ended December 31,
	2019			2018			2017
Stock Options:
Risk free interest rate		1.7% - 2.5%			2.6% - 2.9%			1.8% - 2.4%
Expected award life (years)		3-10			3-10			5-10
Expected volatility		34.2% - 38.8%			35.4% - 42.1%			36.6% - 41.4%
Expected dividend yield		2.3% - 2.5%			1.6% - 2.1%			1.8% - 2.1%
Weighted average fair value per share at grant date	$	3.96		$	5.93		$	5.56
SARs:
Risk free interest rate		2.4	%		2.6	%		1.9	%
Expected award life (years)		3			3			5
Expected volatility		34.8	%		38.1	%		36.6	%
Expected dividend yield		2.3	%		1.6	%		2.1	%
Weighted average fair value per share at grant date	$	3.97		$	6.06		$	4.83

Share-based Payment Arrangement, Option, Activity [Table Text Block]

						Weighted Average		Aggregate
		No. of			Weighted Average	Remaining Life		Intrinsic Value
		Shares			Exercise Price	(in years)		(in thousands)
Outstanding, January 1, 2019		676,846		$	15.70	2.99	$	2,230
Granted		184,994			17.22
Exercised		(75,444	)		6.71
Lapsed or cancelled	(85,265)				17.77
Outstanding, December 31, 2019		701,131		$	16.82	2.95	$	714
Exercisable, December 31, 2019		496,153		$	16.54	2.33	$	714

Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block]

					Weighted Average		Aggregate
		No. of		Weighted Average	Remaining Life		Intrinsic Value
		Shares		Exercise Price	(in years)		(in thousands)
Outstanding, January 1, 2019		182,894	$	18.99	2.61	$	89
Granted		42,841		17.77
Exercised		-		-
Lapsed or cancelled	(19,035)			19.67
Outstanding, December 31, 2019		206,700	$	18.67	2.04	$	-
Exercisable, December 31, 2019		168,478	$	18.88	1.57	$	-

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

	No. of			Weighted Average
	Shares			Grant Date Fair Value
Outstanding, January 1, 2019		92,032		$	19.46
Granted		69,530			16.79
Vested		(10,396	)		16.37
Forfeited		-			-
Outstanding, December 31, 2019		151,166		$	18.44

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

	No. of			Weighted Average
	Shares			Grant Date Fair Value
Outstanding, January 1, 2019		194,378		$	20.08
Granted		14,068			17.77
Vested		-			-
Forfeited		(14,434	)		22.03
Outstanding, December 31, 2019		194,012		$	19.77