Note 9 - Defined Benefit Pension Plan (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Interest cost on projected benefit obligation	$	900		$	999		$	2,702		$	2,994
Expected return on plan assets		(1,346	)		(1,197	)		(4,040	)		(3,591	)
Recognized actuarial loss		496			424			1,488			1,272
Net periodic pension expense	$	50		$	226		$	150		$	675