Subsequent Events (Details) (Subsequent event, USD $) In Millions, unless otherwise specified	1 Months Ended
May 31, 2013
Subsequent event
Subsequent Events
Approximate reduction in overall spending across departments	$ 10

Represents the amount of expected reduction per annum in overall spending across departments according to cost reduction plan.

No definition available.

Name:	wavx_ExpectedReductionInCostPerAnnumAcrossDepartmentsThroughCostReductionPlan
Namespace Prefix:	wavx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration