Commitments and Contingencies - Schedule of Contractual Obligations and Commitments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Other Commitments [Line Items]
Contractual obligations and commitments, Payment Due, 2014	$ 906
Contractual obligations and commitments, Payment Due, 2015	1,838
Contractual obligations and commitments, Payment Due, 2016	1,865
Contractual obligations and commitments, Payment Due, 2017	1,692
Contractual obligations and commitments, Payment Due, 2018	952
Contractual obligations and commitments, Payment Due, Total	7,253
Operating Lease [Member]
Other Commitments [Line Items]
Contractual obligations and commitments, Payment Due, 2014	430
Contractual obligations and commitments, Payment Due, 2015	886
Contractual obligations and commitments, Payment Due, 2016	913
Contractual obligations and commitments, Payment Due, 2017	740
Contractual obligations and commitments, Payment Due, 2018	0
Contractual obligations and commitments, Payment Due, Total	2,969
Employment Agreements [Member]
Other Commitments [Line Items]
Contractual obligations and commitments, Payment Due, 2014	476
Contractual obligations and commitments, Payment Due, 2015	952
Contractual obligations and commitments, Payment Due, 2016	952
Contractual obligations and commitments, Payment Due, 2017	952
Contractual obligations and commitments, Payment Due, 2018	952
Contractual obligations and commitments, Payment Due, Total	$ 4,284