Note 2 - Acquisitions	9 Months Ended
Sep. 30, 2019
Notes to Financial Statements
Business Combination Disclosure [Text Block]	2. Acquisitions *Acquisition of Pika* On April 26, 2019, the Company acquired Pika for a purchase price, net of cash acquired, of $49,068. The acquisition purchase price was funded solely through cash on hand. The Company recorded a preliminary purchase price allocation during the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $55,986 of intangible assets, including $23,286 of goodwill recorded in the Domestic segment, as of the acquisition date. The goodwill ascribed to the acquisition is not deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Pika from the date of acquisition through September 30, 2019. The preliminary allocation of the purchase price is based on a preliminary valuation performed to determine the fair value of the net assets as of the acquisition date. The purchase price allocation is subject to further analysis and review, primarily around the review and final valuation of acquired intangible assets. *Acquisition of* *Neurio* On March 12, 2019, the Company acquired Neurio for a purchase price of $59,071, net of cash acquired and inclusive of a deferred payment of $7,922 which was made during the three months ended September 30, 2019. The acquisition purchase price was funded solely through cash on hand. The Company recorded a preliminary purchase price allocation in the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $58,511 of intangible assets, including $24,011 of goodwill recorded in the Domestic segment, as of the acquisition date. Substantially all of the goodwill ascribed to this acquisition is deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Neurio from the date of acquisition through September 30, 2019. The preliminary allocation of the purchase price is based on a preliminary valuation performed to determine the fair value of the net assets as of the acquisition date. The purchase price allocation is subject to further analysis and review, primarily around the review and final valuation of acquired intangible assets. *Acquisition of Selmec* On June 1, 2018, the Company acquired Selmec for a purchase price of $79,972, net of cash acquired and inclusive of estimated earnout payments of $14,902. The acquisition purchase price was funded solely through cash on hand. The Company finalized the Selmec purchase price allocation during the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $79,826 of intangible assets, including approximately $46,196 of goodwill recorded in the International segment, as of the acquisition date. The goodwill ascribed to the acquisition is not deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Selmec from the date of acquisition through September 30, 2019. Overall, the net sales contribution from all non-annualized acquisitions to the three and nine month periods ended September 30, 2019 was $4,814 and $32,018, respectively.

Note 2 - Acquisitions

9 Months Ended

Sep. 30, 2019

Business Combination Disclosure [Text Block]

2. Acquisitions

Acquisition of Pika

On April 26, 2019, the Company acquired Pika for a purchase price, net of cash acquired, of $49,068. The acquisition purchase price was funded solely through cash on hand.

The Company recorded a preliminary purchase price allocation during the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $55,986 of intangible assets, including $23,286 of goodwill recorded in the Domestic segment, as of the acquisition date. The goodwill ascribed to the acquisition is not deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Pika from the date of acquisition through September 30, 2019. The preliminary allocation of the purchase price is based on a preliminary valuation performed to determine the fair value of the net assets as of the acquisition date. The purchase price allocation is subject to further analysis and review, primarily around the review and final valuation of acquired intangible assets.

Acquisition of Neurio

On March 12, 2019, the Company acquired Neurio for a purchase price of $59,071, net of cash acquired and inclusive of a deferred payment of $7,922 which was made during the three months ended September 30, 2019. The acquisition purchase price was funded solely through cash on hand.

The Company recorded a preliminary purchase price allocation in the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $58,511 of intangible assets, including $24,011 of goodwill recorded in the Domestic segment, as of the acquisition date. Substantially all of the goodwill ascribed to this acquisition is deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Neurio from the date of acquisition through September 30, 2019. The preliminary allocation of the purchase price is based on a preliminary valuation performed to determine the fair value of the net assets as of the acquisition date. The purchase price allocation is subject to further analysis and review, primarily around the review and final valuation of acquired intangible assets.

Acquisition of Selmec

On June 1, 2018, the Company acquired Selmec for a purchase price of $79,972, net of cash acquired and inclusive of estimated earnout payments of $14,902. The acquisition purchase price was funded solely through cash on hand.

The Company finalized the Selmec purchase price allocation during the second quarter of 2019 based upon its estimates of the fair value of the acquired assets and assumed liabilities. As a result, the Company recorded approximately $79,826 of intangible assets, including approximately $46,196 of goodwill recorded in the International segment, as of the acquisition date. The goodwill ascribed to the acquisition is not deductible for tax purposes. The accompanying condensed consolidated financial statements include the results of Selmec from the date of acquisition through September 30, 2019.

Overall, the net sales contribution from all non-annualized acquisitions to the three and nine month periods ended September 30, 2019 was $4,814 and $32,018, respectively.