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Note 13 - Leases (Details Textual) - European Headquarters Facility [Member] $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Oct. 09, 2015 ft² | Sep. 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Lessee Leasing Arrangements Ability to Withdrawn Without Penalty | 9 years |  |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 |

X
- Definition Term of the lessee's leasing arrangement ability to withdraw with penalties, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Term of the lessee's leasing arrangement ability to withdraw without penalties, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Represents the amount of additional tenant improvements under a leasing arrangement. + References No definition available. + Details
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X
- Definition Term of the lessee's leasing arrangement initial yearly rent. + References No definition available. + Details
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X
- Definition Represents the number of renewal terms of a leasing arrangement. + References No definition available. + Details
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X
- Definition Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Area of a real estate property. + References No definition available. + Details
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X
- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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X
- Details
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X
- Details
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