Commitments and contingencies	12 Months Ended
Dec. 31, 2019
Commitments and contingencies
Commitments and contingencies	Note 16. Commitments and contingencies Registration Payment Arrangement: On November 5, 2018, in conjunction with the Second Amendment to the Facility and the related issuance of the Convertible Notes, the Company entered into the Registration Agreement which required the Company to file a registration statement with the SEC to register the Registrable Securities (see Note 11) within 30 days from November 5, 2018, which was to become effective per the SEC no later than 75 days thereafter. The filing deadline was subsequently extended to December 21, 2018. The Company filed a registration statement on Form S-3 to comply with the Registration Agreement on December 11, 2018, which became effective on December 20, 2018. This filing covered 3,796,668 shares, which is the number of shares that would be issued up to the Exchange Cap as (defined in the agreement). The Company is also required to, among other things, maintain the effectiveness of such registration statement, continue to file the required SEC filings on a timely basis, use its best efforts to ensure that the registered securities are listed on each securities exchange on which securities of the same class or series as issued by the Company are then listed and comply with any FINRA requests. Upon any Registration Failure, the Company shall pay additional damages to the Holder for each 30-day period (prorated for any partial period) after the date of such Registration Failure in an amount in cash equal to two percent of the original principal amount of the Convertible Notes. The Company’s obligations with respect to each registration end at the date which is the earlier of (a) when all of the Registrable Securities covered by such registration have been sold or (b) when Deerfield or any of its transferees or assignees under the Registration Agreement cease to hold any of the Registrable Securities. For each registration filing, the Company shall bear all reasonable expenses, other than underwriting discounts and commissions, and shall reimburse Deerfield or any assignee or transferee for up to $25,000 in legal fees. The Company currently expects to satisfy all of its obligations under the Registration Agreement and does not expect to pay any damages pursuant to this agreement; therefore, no liability has been recorded. Patent Infringement Litigation: On October 31, 2017, the Company received a paragraph IV certification from Teva Pharmaceuticals USA, Inc. (“Teva”) advising the Company that Teva has filed an Abbreviated New Drug Application (“ANDA”) with the FDA for a generic version of Cotempla XR-ODT, in connection with seeking to market its product prior to the expiration of patents covering Cotempla XR-ODT. On December 13, 2017, the Company filed a patent infringement lawsuit in federal district court in the District of Delaware against Teva alleging that Teva infringed the Company’s Cotempla XR-ODT patents. On December 21, 2018, the Company entered into a Settlement Agreement (the “Teva Settlement Agreement”) and a Licensing Agreement (the “Teva Licensing Agreement” and collectively with the Teva Settlement Agreement, the “Teva Agreement”) with Teva that resolved all ongoing litigation involving the Company’s Cotempla XR-ODT patents and Teva’s ANDA. Under the Teva Agreement, the Company granted Teva the right to manufacture and market its generic version of Cotempla XR-ODT under the ANDA beginning on July 1, 2026, or earlier under certain circumstances. A stipulation and order of dismissal was entered by the U.S. District Court for the District of Delaware. The Teva Agreement has been submitted to the applicable governmental agencies. On July 25, 2016, the Company received a paragraph IV certification from Actavis Laboratories FL, Inc. (“Actavis”) advising the Company that Actavis had filed an ANDA with the FDA for a generic version of Adzenys XR-ODT. On September 1, 2016, the Company filed a patent infringement lawsuit in federal district court against Actavis alleging that Actavis infringed the Company’s Adzenys XR-ODT patents. On October 17, 2017, the Company entered into a Settlement Agreement (the “Actavis Settlement Agreement”) and a Licensing Agreement (the “Actavis Licensing Agreement” and collectively with the Actavis Settlement Agreement, the “Actavis Agreement”) with Actavis that resolved all ongoing litigation involving the Company’s Adzenys XR-ODT patents and Actavis’s ANDA. Under the Actavis Agreement, the Company granted Actavis the right to manufacture and market its generic version of Adzenys XR-ODT under the ANDA beginning on September 1, 2025, or earlier under certain circumstances. A stipulation and order of dismissal was entered by the U.S. District Court for the District of Delaware. The Actavis Agreement has been submitted to the applicable governmental agencies. Other Litigation: On March 7, 2018 and April 18, 2019, the Company received citations advising the Company that the County of Harris Texas (“Harris County”) and the County of Walker Texas (“Walker County”) filed lawsuits on December 13, 2017 and January 11, 2019, respectively, against the Company and various other alleged manufacturers, promoters, sellers and distributors of opioid pharmaceutical products. Through these lawsuits, each of Harris County and Walker County seek to recoup as damages some of the expenses they allegedly have incurred to combat opioid use and addiction. Each of Harris County and Walker County also seeks punitive damages, disgorgement of profits and attorneys’ fees. Defined contribution plans: The Company maintains a defined contribution plan covering substantially all employees under the provisions of Section 401(k) of the Internal Revenue Code (“Code”). As the Company has elected a Safe-Harbor provision for the 401(k) Plan, participants are always fully vested in their employer contributions. Employees may contribute annually up to the lesser of 50% of their compensation or the applicable limit established by the Code. Effective January 1, 2015, the Company amended its 401(k) plan to provide a Company matching contribution on 100% of a participant’s contribution for the first 3% of their salary deferral and 50% of the next 2% of their salary deferral. For the years ended December 31, 2019, 2018 and 2017, the Company recorded $577,000, $576,000 and $419,000, respectively, of expense for 401(k) contributions. Operating lease: The Company leases its Grand Prairie, Texas office space and manufacturing facility under an operating lease which expires in 2024. In addition, in December 2015, the Company executed a 60-month lease for additional office space in Blue Bell, Pennsylvania which commenced on May 1, 2016. Prior to the adoption of the New Lease Standard on January 1, 2019, the Company accounted for rent expense on long-term operating leases on a straight-line basis over the life of the lease resulting in a deferred rent balance of $989,000 at December 31, 2018. The Company adopted ASU No. 2016-02 at January 1, 2019 and recognized an operating lease liability of $4.3 million under the New Lease Standard (See Note 2 and 12). The Company is also liable for a share of operating expenses for both premises as defined in the lease agreements. The Company’s share of these operating expenses was $217,000, $206,000 and $243,000 for the years ended December 31, 2019, 2018 and 2017, respectively. Rent expense for these leases, excluding the share of operating expenses, was $1,011,000, $1,011,000 and $1,010,000 for the years ended December 31, 2019, 2018 and 2017, respectively. Cash incentive bonus plan: In July 2015, the Company adopted the Senior Executive Cash Incentive Bonus Plan (“Bonus Plan”). The Bonus Plan provides for cash payments based upon the attainment of performance targets established by the Company’s compensation committee. The payment targets will be related to financial and operational measures or objectives with respect to the Company, or corporate performance goals, as well as individual targets. The Company has recorded $1,567,000, $666,000 and $701,000 of compensation expense for the years ended December 31, 2019, 2018 and 2017, respectively, under the Bonus Plan.

Note 16. Commitments and contingencies

Registration Payment Arrangement: On November 5, 2018, in conjunction with the Second Amendment to the Facility and the related issuance of the Convertible Notes, the Company entered into the Registration Agreement which required the Company to file a registration statement with the SEC to register the Registrable Securities (see Note 11) within 30 days from November 5, 2018, which was to become effective per the SEC no later than 75 days thereafter. The filing deadline was subsequently extended to December 21, 2018. The Company filed a registration statement on Form S-3 to comply with the Registration Agreement on December 11, 2018, which became effective on December 20, 2018. This filing covered 3,796,668 shares, which is the number of shares that would be issued up to the Exchange Cap as (defined in the agreement). The Company is also required to, among other things, maintain the effectiveness of such registration statement, continue to file the required SEC filings on a timely basis, use its best efforts to ensure that the registered securities are listed on each securities exchange on which securities of the same class or series as issued by the Company are then listed and comply with any FINRA requests. Upon any Registration Failure, the Company shall pay additional damages to the Holder for each 30-day period (prorated for any partial period) after the date of such Registration Failure in an amount in cash equal to two percent of the original principal amount of the Convertible Notes. The Company’s obligations with respect to each registration end at the date which is the earlier of (a) when all of the Registrable Securities covered by such registration have been sold or (b) when Deerfield or any of its transferees or assignees under the Registration Agreement cease to hold any of the Registrable Securities. For each registration filing, the Company shall bear all reasonable expenses, other than underwriting discounts and commissions, and shall reimburse Deerfield or any assignee or transferee for up to $25,000 in legal fees. The Company currently expects to satisfy all of its obligations under the Registration Agreement and does not expect to pay any damages pursuant to this agreement; therefore, no liability has been recorded.

Patent Infringement Litigation: On October 31, 2017, the Company received a paragraph IV certification from Teva Pharmaceuticals USA, Inc. (“Teva”) advising the Company that Teva has filed an Abbreviated New Drug Application (“ANDA”) with the FDA for a generic version of Cotempla XR-ODT, in connection with seeking to market its product prior to the expiration of patents covering Cotempla XR-ODT. On December 13, 2017, the Company filed a patent infringement lawsuit in federal district court in the District of Delaware against Teva alleging that Teva infringed the Company’s Cotempla XR-ODT patents. On December 21, 2018, the Company entered into a Settlement Agreement (the “Teva Settlement Agreement”) and a Licensing Agreement (the “Teva Licensing Agreement” and collectively with the Teva Settlement Agreement, the “Teva Agreement”) with Teva that resolved all ongoing litigation involving the Company’s Cotempla XR-ODT patents and Teva’s ANDA. Under the Teva Agreement, the Company granted Teva the right to manufacture and market its generic version of Cotempla XR-ODT under the ANDA beginning on July 1, 2026, or earlier under certain circumstances. A stipulation and order of dismissal was entered by the U.S. District Court for the District of Delaware. The Teva Agreement has been submitted to the applicable governmental agencies.

On July 25, 2016, the Company received a paragraph IV certification from Actavis Laboratories FL, Inc. (“Actavis”) advising the Company that Actavis had filed an ANDA with the FDA for a generic version of Adzenys XR-ODT. On September 1, 2016, the Company filed a patent infringement lawsuit in federal district court against Actavis alleging that Actavis infringed the Company’s Adzenys XR-ODT patents. On October 17, 2017, the Company entered into a Settlement Agreement (the “Actavis Settlement Agreement”) and a Licensing Agreement (the “Actavis Licensing Agreement” and collectively with the Actavis Settlement Agreement, the “Actavis Agreement”) with Actavis that resolved all ongoing litigation involving the Company’s Adzenys XR-ODT patents and Actavis’s ANDA. Under the Actavis Agreement, the Company granted Actavis the right to manufacture and market its generic version of Adzenys XR-ODT under the ANDA beginning on September 1, 2025, or earlier under certain circumstances. A stipulation and order of dismissal was entered by the U.S. District Court for the District of Delaware. The Actavis Agreement has been submitted to the applicable governmental agencies.

Other Litigation: On March 7, 2018 and April 18, 2019, the Company received citations advising the Company that the County of Harris Texas (“Harris County”) and the County of Walker Texas (“Walker County”) filed lawsuits on December 13, 2017 and January 11, 2019, respectively, against the Company and various other alleged manufacturers, promoters, sellers and distributors of opioid pharmaceutical products. Through these lawsuits, each of Harris County and Walker County seek to recoup as damages some of the expenses they allegedly have incurred to combat opioid use and addiction. Each of Harris County and Walker County also seeks punitive damages, disgorgement of profits and attorneys’ fees.

Defined contribution plans: The Company maintains a defined contribution plan covering substantially all employees under the provisions of Section 401(k) of the Internal Revenue Code (“Code”). As the Company has elected a Safe-Harbor provision for the 401(k) Plan, participants are always fully vested in their employer contributions. Employees may contribute annually up to the lesser of 50% of their compensation or the applicable limit established by the Code. Effective January 1, 2015, the Company amended its 401(k) plan to provide a Company matching contribution on 100% of a participant’s contribution for the first 3% of their salary deferral and 50% of the next 2% of their salary deferral. For the years ended December 31, 2019, 2018 and 2017, the Company recorded $577,000, $576,000 and $419,000, respectively, of expense for 401(k) contributions.

Operating lease: The Company leases its Grand Prairie, Texas office space and manufacturing facility under an operating lease which expires in 2024. In addition, in December 2015, the Company executed a 60-month lease for additional office space in Blue Bell, Pennsylvania which commenced on May 1, 2016. Prior to the adoption of the New Lease Standard on January 1, 2019, the Company accounted for rent expense on long-term operating leases on a straight-line basis over the life of the lease resulting in a deferred rent balance of $989,000 at December 31, 2018. The Company adopted ASU No. 2016-02 at January 1, 2019 and recognized an operating lease liability of $4.3 million under the New Lease Standard (See Note 2 and 12). The Company is also liable for a share of operating expenses for both premises as defined in the lease agreements. The Company’s share of these operating expenses was $217,000, $206,000 and $243,000 for the years ended December 31, 2019, 2018 and 2017, respectively. Rent expense for these leases, excluding the share of operating expenses, was $1,011,000, $1,011,000 and $1,010,000 for the years ended December 31, 2019, 2018 and 2017, respectively.

Cash incentive bonus plan: In July 2015, the Company adopted the Senior Executive Cash Incentive Bonus Plan (“Bonus Plan”). The Bonus Plan provides for cash payments based upon the attainment of performance targets established by the Company’s compensation committee. The payment targets will be related to financial and operational measures or objectives with respect to the Company, or corporate performance goals, as well as individual targets. The Company has recorded $1,567,000, $666,000 and $701,000 of compensation expense for the years ended December 31, 2019, 2018 and 2017, respectively, under the Bonus Plan.