Commitments and Contingencies (Details) - New Alameda Lease [Member]	6 Months Ended
	Jun. 30, 2016 USD ($) ft² Building
Operating Leased Assets [Line Items]
Leased area | ft²	30,795
Number of buildings for lease | Building	2
Lease term	7 years
Number of years lease can be extended	5 years
Lease commencement date	Feb. 01, 2016
Tenant improvement allowance	$ 1,400,000
Base rent	$ 64,670
Base rent increase rate	3.00%