In connection with the extension of the Wells Fargo loan (as described in Note 8), on September 8, 2017 we also entered into with Mr. Dalrymple a Financing Agreement, Amended and Restated Secured Promissory Note and Amended Security Agreement, under which we extended the maturity date of the promissory note originally entered into with Mr. Dalrymple in August 2012 to be due and payable on September 8, 2018 and have provided collateral to Mr. Dalrymple in an amount of $3,000,000 in our gross accounts receivable to secure payment of both his promissory note and his obligations in connection with the Amended and Restated Revolving Line of Credit Note and the Amended and Restated Credit Agreement with the Bank.  The promissory note with Mr. Dalrymple as of September 30, 2017 has a principal balance of $250,000.  For the three months ended September 30, 2017 and 2016, we recorded $3,750 and $6,250, respectively, in interest expense related to this note. For the nine months ended September 30, 2017 and 2016, we recorded $12,236 and $21,250, respectively, in interest expense related to this note.