Note 14 - Subsequent Event (Details Textual) - $ / shares	May 06, 2020	Mar. 31, 2020
Dividends, Total (in dollars per share)		$ 0.07
Subsequent Event [Member]
Dividends, Total (in dollars per share)	$ 0.07

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant