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Note 4 - Redeemable Noncontrolling Interest - Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Redemption value adjustment | $ (6,912) |  |  |  | $ (16,882) |  | $ 909 |
Redeemable Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Balance at beginning of period | 53,035 |  | 37,796 |  | 43,929 |  | 33,138 |
Noncontrolling interest of Pramac |  |  | 1,540 | [1] |  |  | 1,540 | [1]
Net income | 519 |  | 283 |  | 1,341 |  | 493 |
Foreign currency translation | (569) |  | 2,178 |  | (2,255) |  | 7,535 |
Redemption value adjustment | 6,912 | [2] |  |  | 16,882 | [2] | (909) |
Balance at end of period | $ 59,897 |  | $ 41,797 |  | $ 59,897 |  | $ 41,797 |
[1] | Represents the additional noncontrolling interest of Pramac resulting from a common control transaction between the Generac Mobile Products S.r.l. and Pramac UK Limited legal entities.
[2] | The redemption value adjustments recorded during the three and nine month periods ended September 30, 2018 relate to the adjustment required to reflect the redeemable noncontrolling interest value as a multiple of earnings after two years from the date of acquisition, in accordance with the terms of the acquisition.

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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 16(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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