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Commitments and Contingencies - Additional Information (Detail) |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Dec. 05, 2018 USD ($) | Apr. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Feb. 28, 2018 USD ($) | Mar. 31, 2017 USD ($) Country | Mar. 31, 2019 USD ($) Patent | Mar. 31, 2018 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  | $ 75,000 |  |  |  |
License fee |  |  |  |  |  | $ 112,500 | $ 100,000
ADVA Tec Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Number of patents issued | Patent |  |  |  |  |  | 9 |
Number of pending US patent applications | Patent |  |  |  |  |  | 1 |
Number of patents granted | Patent |  |  |  |  |  | 59 |
Number of patent applications in other major markets | Patent |  |  |  |  |  | 4 |
Licensing Agreements [Member] | ADVA Tec Agreement [Member] | Ovaprene [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Agreement termination period on failing to commercialize in certain designated countries |  |  |  |  | 3 years |  |
Agreement termination on failing to enroll patient within months of production and release |  |  |  |  | 6 months |  |
Prior written notice period for termination of agreement for both parties |  |  |  | 60 days |  |  |
Licensing Agreements [Member] | ADVA Tec Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Number of designated European countries | Country |  |  |  |  | 3 |  |
Percentage of royalty rate |  |  |  |  | 1.00% |  |
Licensing Agreements [Member] | ADVA Tec Agreement [Member] | Minimum [Member] | Ovaprene [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Minimum spending amounts per year |  |  |  |  | $ 5,000,000 |  |
Licensing Agreements [Member] | ADVA Tec Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Percentage of royalty rate |  |  |  |  | 10.00% |  |
Juniper Pharmaceuticals, Inc. [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Potential annual license maintenance fee, payments in year one |  | $ 50,000 |  |  |  |  |
Potential annual license maintenance fee payments, thereafter |  | $ 100,000 |  |  |  |  |
License agreement, period of continuation from date of first commercial sale of product or process |  | 10 years |  |  |  |  |
License agreement notice period of termination for breach of payment obligation |  | 30 days |  |  |  |  |
Period of dismissal of bankruptcy petition |  | 90 days |  |  |  |  |
License agreement notice period of termination for breach of other obligation |  | 60 days |  |  |  |  |
License agreement, notice period of termination |  | 180 days |  |  |  |  |
Juniper Pharmaceuticals, Inc. [Member] | Clinical And Regulatory Milestones [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Maximum potential milestone payments |  | $ 13,500,000 |  |  |  |  |
Juniper Pharmaceuticals, Inc. [Member] | Sales Milestones [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Maximum potential milestone payments |  | $ 30,300,000 |  |  |  |  |
Juniper Pharmaceuticals [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
License agreement, termination period prior to receipt of approval |  | 90 days |  |  |  |  |
Upfront license fee paid |  | $ 250,000 |  |  |  |  |
SST [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
License agreement, termination period due to performance failure |  |  |  |  | 60 days |  |
Percentage of rights to inventions by employees under license agreement |  |  |  | 50.00% |  |  |
License agreement, expiration period |  |  |  | 10 years |  |  |
License agreement, termination period prior to receipt of approval |  |  |  | 90 days |  |  |
License agreement, termination period after receipt of approval |  |  |  | 180 days |  |  |
License agreement, termination period for applicable license products of applicable countries |  |  |  | 30 days |  |  |
SST [Member] | Minimum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount |  |  |  | $ 500,000.0 |  |  |
Secured investment required for license agreement |  |  |  | 10,000,000 |  |  |
SST [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount |  |  |  | $ 18,000,000 |  |  |
SST [Member] | License And Collaboration Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Percentage of rights to inventions by employees under license agreement |  |  |  | 50.00% |  |  |
Orbis [Member] | Development And Option Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  | $ 300,000 |  |  |  |
Commencement period for stage two upon achievement of stage one |  |  | 90 days |  |  |  |
MilanaPharm [Member] | Licensing Agreements [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
License fee | $ 25,000 |  |  |  |  |  |
License fee to be paid upon contingency | 200,000 |  |  |  |  |  |
Proceeds raised from equity financing | 10,000,000 |  |  |  |  |  |
Hammock Pharmaceuticals, Inc. [Member] | Assignment Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
License fee | 250,000 |  |  |  |  |  |
License fee to be paid upon contingency | 250,000 |  |  |  |  |  |
Proceeds raised from equity financing | 10,000,000 |  |  |  |  |  |
Upon Achieving Certain Commercial Milestones [Member] | SST [Member] | License And Collaboration Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount |  |  |  | $ 100,000,000 |  |  |
Upon Achieving Certain Commercial Milestones [Member] | MilanaPharm [Member] | Licensing Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount | 1,750,000 |  |  |  |  |  |
Upon Signing Of Development And Option Agreement [Member] | Orbis [Member] | Development And Option Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  | $ 150,000 |  |  |  |
Upon Completion Of Fifty Percent Development Not Later Than Six Months [Member] | Orbis [Member] | Development And Option Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  | $ 75,000 |  |  |  |
Upon Achieving Certain Development Milestones [Member] | MilanaPharm [Member] | Licensing Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount | 300,000 |  |  |  |  |  |
Upon Achieving Certain Clinical And Regulatory Development Milestones [Member] | Hammock Pharmaceuticals, Inc. [Member] | Assignment Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments, contingent amount | $ 1,100,000 |  |  |  |  |  |
Upon Achievement Of Specified Development And Regulatory Milestones [Member] | ADVA Tec Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | $ 14,600,000 |
Upon Achievement Of Specified Development And Regulatory Milestones [Member] | Licensing Agreements [Member] | ADVA Tec Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  |  |  | $ 14,600,000 |  |
Upon Reaching Certain Worldwide Net Sales Milestones [Member] | Licensing Agreements [Member] | ADVA Tec Agreement [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  |  |  | $ 20,000,000 |  |
Upon Achievement Of Specified Commercialization Milestones [Member] | ADVA Tec Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | $ 20,000,000 |

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