Note 13 - Customer and Supplier Concentration (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Cost of Goods, Total [Member] | Product Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Concentration Risk, Percentage		13.50%
Sales Revenue, Net [Member] | Product Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Concentration Risk, Percentage		12.50%		11.80%
Customer Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Number of Customers Considered as Concentration Risks	3		3
Supplier Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Number of Suppliers Considered as Concentration Risks	0	1	0	0
Product Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Number of Products Considered as Concentration Risks	0	1	0	1