Note 5 - Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months						Nine Months
	Ended September 30,						Ended September 30,
	2014			2013			2014			2013
Service cost	$	82		$	140		$	246		$	421
Interest cost		101			94			303			282
Expected return on plan assets		(107	)		(99	)		(321	)		(297	)
Amortization of net loss		14			62			42			185
Amortization of prior service cost		(2	)		(2	)		(6	)		(6	)
	$	88		$	195		$	264		$	585