Note 5 - Acquisition of EGEN, Inc. (Details) - Summary of Estimated Fair Values of Acquired Assets and Liabilities (USD $)	Dec. 31, 2014
Note 5 - Acquisition of EGEN, Inc. (Details) - Summary of Estimated Fair Values of Acquired Assets and Liabilities [Line Items]
Goodwill	$ 1,976,101us-gaap_Goodwill
EGEN, Inc. [Member]
Note 5 - Acquisition of EGEN, Inc. (Details) - Summary of Estimated Fair Values of Acquired Assets and Liabilities [Line Items]
Property and equipment, net	35,000
In-process research and development	25,802,000
Goodwill	1,976,000
Total assets:	27,813,000
Accounts payable and accrued liabilities	(235,000)
Net assets acquired	$ 27,578,000

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Amount of assets acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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