Note 12 - Subsequent Event - Dividend Declaration (Details Textual) - Subsequent Event [Member]	Mar. 23, 2017 $ / shares
Dividends Payable, Amount Per Share	$ 0.10
Dividends Payable, Date of Record	Apr. 03, 2017
Dividends Payable, Date to be Paid	Apr. 10, 2017

Date the declared dividend will be paid, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

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