Note 5 - Goodwill and Intangible Assets (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Goodwill, Impairment Loss	$ 2,700,000	$ 4,200,000	$ 6,929,258
Goodwill, Ending Balance	0		0	6,929,258
Impairment of Intangible Assets (Excluding Goodwill), Total			0	0
RES-529 [Member]
Intangible Assets, Gross (Excluding Goodwill), Total	$ 8,600,000		8,600,000	8,600,000
Impairment of Intangible Assets (Excluding Goodwill), Total			$ 0	$ 0

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

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-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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Amount before accumulated amortization of intangible assets, excluding goodwill.

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No definition available.

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