Note 13 - Leases (Details Textual) - European Headquarters Facility [Member] $ in Millions |
6 Months Ended | ||
---|---|---|---|
Oct. 09, 2015
ft²
|
Jun. 30, 2017
USD ($)
|
Mar. 01, 2017
USD ($)
|
|
Area of Real Estate Property | ft² | 33,000 | ||
Lessee Leasing Arrangements, Term of Contract | 15 years | ||
Lessee Leasing Arrangements, Number of Renewal Terms | 3 | ||
Lessee Leasing Arrangements, Renewal Term | 6 years | ||
Lessee Leasing Arrangements Ability to Withdraw With Penalty | 6 years | ||
Lessee Leasing Arrangements Ability to Withdrawn Without Penalty | 9 years | ||
Lessee Leasing Arrangements Initial Yearly Rent | $ 0.3 | ||
Construction in Progress, Gross | $ 3.1 | ||
Deposits and Other Assets, Noncurrent [Member] | |||
Lessee Leasing Arrangements, Additional Tenant Improvements | $ 0.8 |