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Note 6 - Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | Goodwill |
Balance as of December 31, 2015 |  | $ | — |
Goodwill as a result of the Merger |  |  | 6,929,258 |
Balance as of December 31, 2016 |  | $ | 6,929,258 |
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] |
|  | Acquisition Date Fair Value |  |  | Accumulated Amortization |  |  | Impairment Upon Abandonment |  |  | Carrying Value at December 31, 2016 |
RES-529 |  | $ | 8,639,000 |  |  | $ | - |  |  | $ | - |  |  | $ | 8,639,000 |
RES-440 |  |  | 961,000 |  |  |  | - |  |  |  | (961,000 | ) |  | $ | - |
Total in-process research and development costs (IPR&D) |  | $ | 9,600,000 |  |  | $ | - |  |  | $ | (961,000 | ) |  | $ | 8,639,000 |

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