Note 8 - Commitments and Contingencies (Details) (Inventory Purchased [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Dec. 20, 2013
Inventory Purchased [Member]
Note 8 - Commitments and Contingencies (Details) [Line Items]
Litigation Settlement, Amount	$ 1.9

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