XML 34 R56.htm IDEA: XBRL DOCUMENT v2.4.0.6

Business Segments (Schedule Of Revenues By Major Customers) (Details)	3 Months Ended
	Jun. 30, 2012 BeiJing JINGCHENG New Energy Co., Ltd. [Member]	Jun. 30, 2012 Karara Mining Limited [Member]	Jun. 30, 2012 INOX Wind Limited. [Member]	Jun. 30, 2011 Department Of Energy [Member]	Jun. 30, 2011 Doosan Heavy Industries & Construction Co Ltd. [Member]	Jun. 30, 2011 Shenyang Blower Works Group Wind Power Co.,Ltd. [Member]
Revenue, Major Customer [Line Items]
Revenue percentage	19.00%	15.00%	15.00%	17.00%	15.00%	13.00%

X

- Details

Name:	us-gaap_EntityWideRevenueMajorCustomerLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

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