Other Current Liabilities (Narrative) (Details) (USD $)	9 Months Ended
Dec. 31, 2013	Mar. 31, 2013
Other Current Liabilities [Abstract]
Accrued import duties	$ 87,100	$ 813,740
Reduction of Accrued Import Duties	$ 726,640

Reduction of Carrying Amounts as of the Balance Sheet Date of Accrued Duties arising from purchases

No definition available.

Name:	uqm_ReductionOfAccruedCountervailingAndAntiDumpingDutiesCurrent
Namespace Prefix:	uqm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration