Note 8 - Financing Arrangements (Details) - JPM Revolving Facility, Interest Terms (Parentheticals)	Apr. 17, 2014
Category 1 [Member] | Base Rate [Member] | Minimum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.50
Category 1 [Member] | Eurodollar [Member] | Minimum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.50
Category 2 [Member] | Base Rate [Member] | Minimum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.25
Category 2 [Member] | Base Rate [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.50
Category 2 [Member] | Eurodollar [Member] | Minimum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.25
Category 2 [Member] | Eurodollar [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.50
Category 3 [Member] | Base Rate [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.25
Category 3 [Member] | Eurodollar [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Fixed charge coverage ratio	1.25