Note 13 - Benfit Plans (Details) - Benefit Plan Information for the U.S. Pension Plan (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of projected benefit obligation:
Obligation at January 1	$ 9,479	$ 7,535
Service Cost	408	482
Interest Cost	384	360
Expected return on plan assets	(410)	(345)
Amortization of net loss	232	203
Amortization of prior service credit	(6)	(11)
Net periodic benefit cost	608	689
Actuarial (gain)/ loss	(1,153)	1,164
Fair value of plan assets at January 1	5,328	4,088
Actual return on plan assets	720	407
Employer contributions	283	895
Benefit Payments	(679)	(62)
Curtailments	(72)
Curtailment gain	(1)
Net periodic benefit cost after curtailment	607	689
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net loss	(1,463)	1,102
Amortization of net loss	(232)	(203)
Amortization of prior service cost	6	11
Curtailment (gain) loss	(72)
Prior service credit/(cost) received due to curtailment	1
Total recognized in other comprehensive (income) loss	(1,760)	910
Fair Value of Plan assets	5,652	5,328
Amounts recognized in consolidated balance sheets:
Prior service credit		7
Net loss	(1,325)	(3,093)
Accumulated other comprehensive loss	(1,325)	(3,086)
Periodic benefit cost	(1,390)	(1,065)
Funded Status:
Net Amount Recognized in Consolidated Balance Sheet	(2,715)	(4,151)
Projected Benefit Obligation	8,367	9,479
Accumulated benefit obligation	7,894	8,701
Net Periodic Benefit Cost and Other Comprehensive (Income) Loss, Total Recognized [Member]
Amounts recognized in consolidated balance sheets:
Periodic benefit cost	$ (1,153)	$ 1,599