Commitments and Contingencies - Additional Information (Detail) - Office Space and Research Facilities Lease - USD ($) |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Commitment And Contingencies [Line Items] | ||||
| Operating leases, rent expense | $ 220,081 | $ 223,866 | $ 687,113 | $ 615,176 |
| Lease agreement description | The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company. | |||
| Lease expiration date | Feb. 28, 2022 | |||
| Maximum | ||||
| Commitment And Contingencies [Line Items] | ||||
| Payments for tenant improvements allowance | $ 515,000 | |||
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- Definition Commitment and contingencies. No definition available.
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- Definition A general description of the nature of the existing leasing arrangements of a lessee for all operating leases including, but not limited to: (1) rental escalation clauses; (2) renewal or purchase options; (3) guarantees or indemnities, if any, (4) restrictions imposed by lease arrangements; (5) unusual provisions or conditions; (6) contingent rentals, if any; and (7) lease expiration dates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. No definition available.
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- Definition Amount of cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy. No definition available.
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