Note 18 - Commitments (Detail) - Summary of purchase commitments (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
2013	$ 2,091
2014	407
Total	$ 2,498

Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

No definition available.

Name:	us-gaap_PurchaseObligationDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant