Note 9 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Note 9 - Stock-based Compensation (Tables) [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Shares			Weighted-Average Grant-Date Fair Value
Non-vested at December 31, 2014		373,154		$	16.75
Granted		318,120			19.10
Vested		(260,700	)		17.37
Forfeited		(9,625	)		18.55
Non-vested at September 30, 2015		420,949		$	18.10
Vested but unissued at September 30, 2015		290,226		$	18.08

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

	For the three months ended September 30,				For the nine months ended September 30,
(In thousands)	2015		2014		2015		2014
Proceeds from stock options exercised	$	-	$	82	$	142	$	512
Fair value of shares received upon exercised of stock options		421		-		441		1,290
Tax benefit related to stock options exercised		87		1		324		94
Intrinsic value of stock options exercised		291		18		96		335

Non-Full Value Awards [Member]

Note 9 - Stock-based Compensation (Tables) [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

	Shares			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value ($000)*
Outstanding at December 31, 2014		154,915		$	15.19
Granted		-			-
Exercised		(45,125	)		12.92
Forfeited		-			-
Outstanding at September 30, 2015		109,790		$	16.12		2.6	$	428

Phantom Share Units (PSUs) [Member]

Note 9 - Stock-based Compensation (Tables) [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

Phantom Stock Plan	Shares			Fair Value
Outstanding at December 31, 2014		67,113		$	20.27
Granted		12,356			19.32
Forfeited		(2	)		20.58
Distributions		(451	)		19.64
Outstanding at September 30, 2015		79,016		$	20.02
Vested at September 30, 2015		78,857		$	20.02