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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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For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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No definition available.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Note 8 - Acquisition of EGEN, Inc. (Details Textual) - EGEN Inc [Member] - USD ($)	Aug. 02, 2016	Jun. 20, 2014	Jun. 30, 2016
Maximum [Member]
Business Combination, Consideration Transferred		$ 44,400,000
Scenario, Forecast [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	670,070
Ovarian Cancer Study Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 12,400,000
Glioblastoma Multiforme Brain Cancer Study Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	12,000,000
TheraSilence Technology Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 6,000,000
In Process Research and Development [Member]
Finite-lived Intangible Assets Acquired		25,800,000
Business Combination, Consideration Transferred		27,600,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		30,400,000	$ 30,400,000
Payments to Acquire Businesses, Gross		$ 3,000,000
Stock Issued During Period, Shares, Acquisitions		2,712,188
Goodwill, Acquired During Period		$ 2,000,000