Note 15 - Subsequent Event (Details Textual) - European Headquarters Facility [Member] - Subsequent Event [Member] - Padova, Italy [Member]	Oct. 09, 2015 EUR (€) ft²
Area of Real Estate Property | ft²	25,000
Lessee Leasing Arrangements, Term of Contract	15 years
Lessee Leasing Arrangements, Number of Renewal Terms	3
Lessee Leasing Arrangements, Renewal Term	6 years
Annual Rent Expense	€ 360,000