Note 10 - Retirement Plans (Details) - Estimated Cost Amortized from Accumulated Other Comprehensive Income into Net Periodic Cost (Retirement Plan [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Retirement Plan [Member]
Note 10 - Retirement Plans (Details) - Estimated Cost Amortized from Accumulated Other Comprehensive Income into Net Periodic Cost [Line Items]
Unrecognized net actuarial gain	$ (4)
Total	$ (4)