Note 10 - Equity Plans (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

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

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2014		20,170		$	32.63
Granted		-			-
Exercised		-			-
Canceled		(1,000	)		32.63
Outstanding at December 31, 2015		19,170		$	32.63		1.3	$	-
Exercisable at December 31, 2015		19,170		$	32.63		1.3	$	-

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	For the years ended December 31,
(in thousands)	2015		2014		2013
RSU expense before taxes	$	1,047	$	1,252	$	936
RSU expense after taxes	$	631	$	774	$	554

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

	Number of Shares			Weighted Average Estimated Fair Value
Outstanding at December 31, 2014		238,023		$	25.11
Granted		69,771			14.54
Converted into shares		(19,900	)		25.34
Forfeited		-			-
Outstanding at December 31, 2015		287,894		$	22.39
Vested at December 31, 2015		271,599		$	22.33