Note 21 - Segment Information (Detail)	12 Months Ended	1 Months Ended	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Sales Revenue, Goods, Net [Member]	Dec. 31, 2011 Sales Revenue, Goods, Net [Member]	Dec. 31, 2011 Sales Revenue, Goods, Net [Member]	Dec. 31, 2010 Sales Revenue, Goods, Net [Member]
Number of Customers				0	1		1
Entity-Wide Revenue, Major Customer, Percentage	9.60%	13.80%	18.90%	10.00%		10.00%	10.00%
Number of Customers				0	1		1
Number of Customers				0	1		1

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

No definition available.

Name:	us-gaap_EntityWideRevenueMajorCustomerPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration