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Leases | 6 Months Ended
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Jun. 30, 2020
Leases |
Leases | ​ 6. Leases ​ At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the circumstances present. The Company determines a lease exists if the contract conveys the right to control an identified asset for a period of time in exchange for consideration. Control is considered to exist when the lessee has the right to obtain substantially all of the economic benefits from the use of an identified asset as well as direct the right to use of that asset. Leases with a term greater than one year are recognized on the balance sheet as right-of-use assets, lease liabilities and, if applicable, long-term lease liabilities. The Company has elected not to recognize on the balance sheet leases with terms of one year or less on the lease commencement date. If a contract is considered to be a lease, the Company recognizes a lease liability based on the present value of the future lease payments over the expected lease term, with an offsetting entry to recognize a right-of-use asset. The interest rate implicit in lease contracts is typically not readily determinable. As such, the Company utilizes the appropriate incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a term similar to the term of the lease for which the rate is estimated. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received. ​ The Company leases office and research space in Rockville, Maryland under an operating lease with a term from June 15, 2015 through October 31, 2023 (the Lease) that is subject to annual rent increases. The Company has the right to sublease or assign all or a portion of the premises, subject to the conditions set forth in the Lease. The Lease may be terminated early by either the landlord or the Company in certain circumstances. In connection with the Lease, the Company received rent abatement as a lease incentive in the initial year of the Lease. In March 2016, the Company amended the Lease (the Lease Amendment) to lease additional space as of June 1, 2016. In May 2016, the Company also paid a security deposit of $52,320 to be held until the expiration or termination of the Company’s obligations under the Lease. The term of the Lease Amendment for the additional space continues through October 31, 2023, the same date as for the premises originally leased under the Lease, subject to the Company’s renewal option set forth in the Lease. The Company’s one-time option to terminate the Lease effective as of October 31, 2020 also applies to the additional space. ​ The Company identified and applied the following significant assumptions in recognizing the right-of-use asset and corresponding liability for the Lease and Lease Amendment: ​
| ● | Lease term – The lease term includes both the noncancelable period and, when applicable, cancelable option periods where failure to exercise such option would result in an economic penalty. The Company’s renewal option to extend is not reasonably certain of being exercised as of June 30, 2020.
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| ● | Incremental borrowing rate – As the Company’s lease does not provide an implicit rate, the Company used an incremental borrowing rate, or IBR, which is the rate incurred to borrow on a collateralized basis over a term similar to the term of the lease for which the rate is estimated. The Company determined the IBR to be 8.0% based on an estimated rate that considered the Company’s credit risk in the United States for a collateralized borrowing and term similar to the Lease.
​ As of June 30, 2020, the weighted-average remaining lease term was 3.3 years. There were no additional operating leases entered into during the six months ended June 30, 2020. ​ The components of lease expense and related cash flows were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 | ​
Operating lease cost | ​ | $ | 231,989 | ​ | $ | 232,036 | ​ | $ | 463,979 | ​ | $ | 464,026 | ​
Variable lease cost | ​ | ​ | 144,009 | ​ | ​ | 84,723 | ​ | ​ | 305,955 | ​ | ​ | 176,481 | ​
Total operating lease cost | ​ | $ | 375,998 | ​ | $ | 316,759 | ​ | $ | 769,934 | ​ | $ | 640,507 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows from operating leases | ​ | $ | 260,489 | ​ | $ | 255,493 | ​ | $ | 520,211 | ​ | $ | 508,880 | ​
​ Maturities of lease liability due under these lease agreements as of June 30, 2020 were as follows: ​
​ | ​ | ​ | ​
​ | ​ | Operating Lease
​ |  | Obligation
July 1, 2020 - December 31, 2020 | ​ | $ | 530,979
2021 | ​ | ​ | 1,077,420
2022 | ​ | ​ | 1,104,356
2023 | ​ | ​ | 940,793
2024 | ​ | ​ | —
Thereafter | ​ | ​ | —
Total | ​ | ​ | 3,653,548
Present value adjustment | ​ | ​ | (419,552)
Present value of lease payments | ​ | $ | 3,233,996
​

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details
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