Note 4 - Acquisitions - (Details Textual) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
Sep. 12, 2018	Sep. 30, 2018	Sep. 30, 2018
Business Combination Separately Recognized Transactions [Line Items]
Acquisition and integration expenses		$ 7,388	$ 7,727
Halo Pharma [Member]
Business Combination Separately Recognized Transactions [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Consideration to Acquire Businesses	$ 425,000
Acquisition and integration expenses		6,460	6,460
Business combination, revenue		5,154	5,154
Business combination, net income		86	86
Business combination, integration related costs		$ 394	$ 394

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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