Note 16 - Benefit Plans (Details) - Employee Benefit Plans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Employee Benefit Plans [Abstract]
Interest cost	$ 204	$ 144	$ 409	$ 412
Expected return on plan assets	(266)	(170)	(533)	(487)
Amortization of net actuarial loss	224	121	449	376
Net periodic pension expense	$ 162	$ 95	$ 325	$ 301