Note 11 - Debt Debt - Credit Facilities(Details)	12 Months Ended
	Dec. 31, 2014 Quarters
Schedule of Available-for-sale Securities [Line Items]
Debt covenant, requirement for number of consecutive fiscal quarters	4
Debt Covenant Requirement [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt to EBITDA (leverage) ratio	3.0
Debt Covenant Actual [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt to EBITDA (leverage) ratio	2.5