On September 5, 2017, the Company executed a 9% secured promissory note with a face value of $150,000 with an investor. Under the terms of the promissory note, the Company received $150,000 and agreed to make monthly interest payments and repay the note principal 24 months from the date of issuance. On September 5, 2019, the investor extended the maturity date to September 5, 2021 and the modification was not deemed substantial. The note is secured by 15,000 shares which are held in escrow and would be issued to the note holder only in the case of an uncured default. As of December 31, 2019, the Company owed $150,000 in principal and $0 in accrued interest under the terms of the agreement and recorded interest expense of $3,402 and $3,402 during the three months ended December 31, 2019 and 2018, respectively.