Note 13 - Customer and Supplier Concentration (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Sales Revenue, Net [Member] | Product Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Concentration Risk, Percentage		11.90%		11.40%
Customer Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Number of Customers Considered as Concentration Risks	3	3	3	3
Supplier Concentration Risk [Member]
Note 13 - Customer and Supplier Concentration (Details) [Line Items]
Number of Suppliers Considered as Concentration Risks	0	0	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