19. Segment Information (Details Narrative) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Information Details Narrative
Interest revenue	$ 0.2	$ 0.1	$ 0.5	$ 0.6
Commission revenue	$ 2.8	$ 8.0	$ 8.8	$ 8.0

Amount of interest revenue (income derived from investments in debt securities and on cash and cash equivalents) net of interest expense (cost of borrowed funds accounted for as interest).

No definition available.

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