Note 11 - Fair Value Measurements (Details) - Discounted Cash Flow Assumptions	Sep. 30, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Time-to-liquidity (months)	24	24
Expected return	2.90%	2.50%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.10%	3.30%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	7.10%	8.10%