Note 7 - Commitments and Contingent Liabilities (Details) (DAndrea VHovnanian [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
May 15, 2014 Subsequent Event [Member]	Dec. 14, 2011
Note 7 - Commitments and Contingent Liabilities (Details) [Line Items]
Loss Contingency, Number of Plaintiffs		1,065
Litigation Settlement, Amount	$ 21

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

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