Note 14 - Commitments and Contingencies (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2013
Operating Leases, Rent Expense, Net	$ 0.5	$ 0.6		$ 1.2	$ 1.2
Operating Leases Minimum Sublease Rental Income			$ 0.3			$ 0.4

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration