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Note 4 - Acquisition - Intangible Assets, Net - Intangible Assets, Net (Details)
9 Months Ended
Sep. 30, 2016
USD ($)
RES-529 [Member]  
Gross carrying amount $ 8,639,000
Intangible Assets, Net (Excluding Goodwill) 8,639,000
RES-440 [Member]  
Gross carrying amount 961,000
Intangible Assets, Net (Excluding Goodwill) 0
Intangible assets, impairment (961,000)
In Process Research and Development Costs (IPR&D) [Member]  
Gross carrying amount 9,600,000
Intangible Assets, Net (Excluding Goodwill) 8,639,000
Intangible assets, impairment $ (961,000)