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Note 2 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Cost of Goods and Services Sold, Total | $ 55,105 | $ 60,731 | [1] | $ 178,578 | $ 169,488 | [1]
Selling and Marketing Expense, Total | 8,412 | 7,384 | [1] | 24,629 | 22,051 | [1]
General and Administrative Expense, Total | $ 4,120 | 3,381 | [1] | $ 12,906 | 10,124 | [1]
Classification of Expenses Error [Member] | Restatement Adjustment [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total |  | (300) |  |  | (300) |
Selling and Marketing Expense, Total |  | (200) |  |  | (200) |
General and Administrative Expense, Total |  | $ 500 |  |  | $ 500 |
[1] | The Company has initially applied ASC 2014-09 (Topic 606) using the modified retrospective method. Under this method, the comparative information is not restated.

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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