Leases (Details) (USD $)	1 Months Ended			3 Months Ended
	Apr. 30, 2012 sqft	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013 Old lease Menlo Park [Member]	Mar. 31, 2012 Old lease Menlo Park [Member]	Mar. 31, 2013 New lease Newark [Member]
Amount of space agreed to lease	52,500
Addition lease space, obligation	8,000
Lease termination penalty interest			8
Lease renewaloOption period	12 months
Operating Leases, Rent Expense				$ 100,000	$ 400,000	$ 400,000
Deferred Rent Asset, Net, Current						1,300,000
Operating Leases, Future Minimum Payments Due						14,100,000
TenantImprovementAllowance		6,300,000
Additional tenant improvement allowance		800,000
SubmittedClaimsForTenantImprovements		$ 5,400,000