Note 23 - Litigation (Details Textual) $ in Millions	1 Months Ended
Dec. 31, 2019 USD ($)
Litigation Settlement, Amount Awarded to Other Party	$ 3

Amount awarded to other party in judgment or settlement of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration