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Note 17 - Related-party Transaction (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Operating Leases, Rent Expense | $ 9.1 | $ 8.7 | $ 8.2
Cleveland Warehouse [Member] |  |  |
Lessee Leasing Arrangements, Operating Leases, Renewal Term | 5 years |  |
Chief Executive Officer [Member] | Related Entity that Owns Cleveland Warehouse [Member] |  |  |
Equity Method Investment, Ownership Percentage | 50.00% |  |
Affiliated Entity [Member] | Cleveland Warehouse [Member] |  |  |
Operating Leases, Rent Expense | $ 0.2 |  |

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- 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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- Details
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- Details
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- Details
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- Details
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- Details
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