Commitments and Contingencies (Details 2) (USD $) In Millions, unless otherwise specified	4 Months Ended	6 Months Ended
	Dec. 31, 2012 Contract Manufacturing and Supply Agreement with SENN	Dec. 31, 2012 Contract Manufacturing and Supply Agreement with CML	Dec. 31, 2012 Contract Manufacturing and Supply Agreement with DSM
Commitments and Contingencies
Period for which rolling forecast on a quarterly basis is required	12 months	12 months
Aggregated cost of committed purchases during the next fiscal year	$ 5.2	$ 1.1	$ 2.4
Advance notice period for termination of the agreement without cause	6 months	18 months	18 months
Period of transfer of manufacturing documentation and technology to alternate designated supplier(s)in the event of breach of contract	3 months		3 months
Period of each forecast which represents a rolling firm irrevocable order		3 months	6 months
Period subsequent to the specified period for which forecast can be increased or decreased		9 months
Period for which rolling forecast on a monthly basis is required			18 months