Note 12 - Pension and Other Postretirement Benefit Plans (Details) - The Components of the Net Pension Expense for the Retirement Plan (Retirement Plan [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Retirement Plan [Member]
Note 12 - Pension and Other Postretirement Benefit Plans (Details) - The Components of the Net Pension Expense for the Retirement Plan [Line Items]
Interest cost	$ 827	$ 879	$ 919
Amortization of unrecognized loss	1,222	1,032	639
Expected return on plan assets	(1,261)	(1,257)	(1,164)
Net pension expense (benefit)	788	654	394
Current year actuarial (gain) loss	(4,722)	652	3,714
Amortization of actuarial loss	(1,222)	(1,032)	(639)
Total recognized in other comprehensive income	(5,944)	(380)	3,075
Total recognized in net pension cost (benefit) and other comprehensive income	$ (5,156)	$ 274	$ 3,469