Operating Leases

As disclosed in Note 4, the Company early adopted ASC 842 to our existing leases. The Company has elected to apply the short-term lease exception to leases of one year or less. Consequently, as a result of adoption of ASC 842, we recognized an operating liability of $136,385 with a corresponding Right-Of-Use (“ROU”) asset of the same amount based on present value of the minimum rental payments of the lease which is included in non-current assets and long-term liabilities in the consolidated balance sheet. The discount rate used for leases accounted for under ASC 842 is the Company’s estimated borrowing rate of 25%.

Our corporate office is currently located at 14 Norfolk Avenue, South Easton, Massachusetts 02375. We are currently paying $6,950 per month, on a lease extension, signed on December 28, 2018, that expires December 31, 2019, for our corporate office. We expanded our space to include offices, warehouse and a loading dock on the first floor starting May 1, 2017 with a monthly rent increase already reflected in the current payments.

We extended our lease for our space in Medford, MA to December 30, 2020. The lease requires monthly payments of $7,130.50 subject to annual cost of living increases. The lease can be extended by the Company for an additional three years unless either party terminates at least six months prior to the expiration of the current lease term.

Rental costs are expensed on a straight-line basis subject to future cost of living increases that are not known until the anniversary date of each year. During the three months ended March 31, 2019 and 2018 we incurred $44,241 and $46,723 in rent expense, respectively for the use of our corporate office and research and development facilities.

Following is a schedule by years of future minimum rental payments required under operating leases with initial or remaining non-cancelable lease terms in excess of one year as of March 31, 2019: