Note 10 - Pension Liability (Details) - Components of Net Pension and Post-Retirement Periodic Benefit Costs - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Components of net periodic benefit cost:
Service cost and amortization of loss	$ 18	$ 12
Interest cost	13	22
Expected return on plan assets	(3)	(4)
Net periodic benefit cost	$ 28	$ 30