The amount recognized in earnings related to the change in fair value during the period of milestone liability.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Number of shares of equity interests issued or issuable to acquire entity.

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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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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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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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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite 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) - USD ($)			3 Months Ended		12 Months Ended
	Aug. 02, 2016	Jun. 20, 2014	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Gain (Loss) from Valuation of Milestone Liability			$ (283,751)	$ (302,656)	$ 700,000
Finite-Lived Intangible Assets, Net			966,095		1,022,924
Noncompete Agreements [Member]
Finite-Lived Intangible Assets, Accumulated Amortization			625,119		568,290
Amortization of Intangible Assets			56,829
Finite-Lived Intangible Assets, Net			966,095		1,022,924
Indefinite-lived in Process Research and Development [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)					1,400,000
EGEN Inc [Member]
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
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	670,070
Goodwill, Acquired During Period		$ 2,000,000
EGEN Inc [Member] \| Noncompete Agreements [Member]
Finite-lived Intangible Assets Acquired					$ 1,600,000
Finite-Lived Intangible Asset, Useful Life					7 years
EGEN Inc [Member] \| Indefinite-lived in Process Research and Development [Member]
Indefinite-lived Intangible Assets Acquired		25,800,000
EGEN Inc [Member] \| Ovarian Cancer Study Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 12,400,000
EGEN Inc [Member] \| Glioblastoma Multiforme Brain Cancer Study Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	12,000,000
EGEN Inc [Member] \| TheraSilence Technology Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 6,000,000
EGEN Inc [Member] \| Maximum [Member]
Business Combination, Consideration Transferred		$ 44,400,000