Note 16 - Income Taxes (Details Textual)	3 Months Ended
Sep. 30, 2019 USD ($)
Gain (Loss) on Disposition of Property Plant Equipment, Total	$ 4,800,000
Deferred Tax Assets, Property, Plant and Equipment	$ 864,000

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration