Variable Interest Entities Consolidated VIEs (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012
Inventory [Member]
Variable Interest Entity [Line Items]
Assets of consolidated VIE	$ 5,195
Advances To Suppliers [Member]
Variable Interest Entity [Line Items]
Assets of consolidated VIE	$ 1,770

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=6970148&loc=d3e5710-111685

Name:	us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant