Note 1 - Property, Plant and Equipment Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2017
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	5 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	40 years
Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	4 years
Land Improvements [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	20 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	3 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	20 years
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	3 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	20 years
Tools, Dies and Molds [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	1 year
Tools, Dies and Molds [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	3 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment Estimated Useful Lives [Line Items]
Property, plant, and equipment, estimated useful lives	10 years