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Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CEO of RHB [Member] | Upon Death [Member]
Business Acquisition, Percentage of Voting Interests Acquired	50.00%
Myers [Member] | Upon Death [Member]
Business Acquisition, Percentage of Voting Interests Acquired	50.00%
Other Operating Income (Expense) [Member]
Income (Loss) from Subsidiaries, before Tax	$ 0	$ 700,000

X

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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X

- Definition

Amount before tax of income (loss) of subsidiary attributable to the parent entity.

+ References

No definition available.

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