million reduction in bad debt, a $0.1 million reduction in employee and employee-related expenses, a $0.1 million reduction in IT infrastructure costs, and a $0.1 million reduction in franchise taxes, offset by an increase in transaction-related expenses of $0.2 million, an increase in service fees and charges of $0.1 million and $0.1 million in expenses related to being a public company. There were 42 and 61 general and administrative employees as of March 31, 2025 and 2024, respectively.
As a percentage of total revenue, general and administrative expense decreased by 1% to 14% in the three months ended March 31, 2025 from 15% in the three months ended March 31, 2024. The decrease is primarily driven by the reduction in Otonomo-related expenses and the implementation of operational efficiencies across the Company.
Depreciation and Amortization
Depreciation and amortization expense decreased by $0.1 to $1.0 million in the three months ended March 31, 2025 from $1.1 million in the three months ended March 31, 2024. The decrease was due primarily to a decrease in amortization of intangible assets resulting from the divestiture of Otonomo’s wholly-owned subsidiary, The Floow Limited, in September 2024.
Other Expense, net
Other expense, net decreased by $1.6 million, or 35%, to $3.0 million in the three months ended March 31, 2025 from $4.6 million in the three months ended March 31, 2024 due primarily to: a $0.9 million decrease in interest expense; a $1.4 million loss on debt extinguishment in the prior year; $0.2 million in income from our equity investment in The Floow Limited; and a decrease in other expense relating to foreign currency of $0.3 million. These gains were offset by a $0.7 million net decrease in income resulting from changes in the fair values of derivative and contingent consideration liabilities.
Liquidity and Capital Resources
Due to our history of recurring losses from operations, negative cash flows from operations, and our dependency on debt and equity financing to fund operating shortfalls, management concluded that there is substantial doubt about our ability to continue as a going concern. Refer to Note 1 “Organization” of our condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q. In addition, our independent registered public accounting firm has included an explanatory paragraph in their audit report for the year ended December 31, 2024 as to the substantial doubt about our ability to continue as a going concern. Our condensed consolidated financial statements have been prepared in accordance with GAAP, which contemplates that we will continue to operate as a going concern. Our interim condensed consolidated financial statements do not contain any adjustments that might result if we are unable to continue as a going concern.
As of March 31, 2025, we had $6.4 million in cash, cash equivalents and restricted cash. Our principal sources of liquidity have historically consisted of financing activities, including proceeds from the issuance of preferred stock, borrowings under debt financing arrangements and credit facilities, and operating activities. As of March 31, 2025, our principal debt balance totaled $56.7 million with maturity dates through July 31, 2026.
In January 2025, we amended our Structural Loan Agreement and Highbridge Loan Agreement to extend the maturity dates thereunder to February 15, 2025 and March 17, 2025, respectively. In February 2025, we amended our Structural Loan Agreement and Highbridge Loan Agreement to extend the maturity dates thereunder to February 28, 2025 and March 31, 2025, respectively.
In February 2025, we entered into the MidCap Credit Agreement in an aggregate principal amount not to exceed the lesser of a $20.0 million commitment amount and the available borrowing base thereunder. As of February 26, 2025, we fully repaid the amount outstanding under the Structural Loan Agreement. The remainder of the available revolving loans were used for working capital needs and for general corporate purposes.
In February 2025, we also entered into an eighth amendment to the Highbridge Loan Agreement (the “Eighth Amendment”), to, among other things, (i) permit our entry into the MidCap Credit Agreement, (ii) modify the interest rate to permit the Company to pay interest in kind for a specified period of time at a rate of 16.0% per annum, and thereafter, pay interest in cash at a rate of 13.0% per annum, subject to certain conditions, (iii) extend the maturity date thereunder from March 31, 2025 to July 31, 2026 and (iv) provide for the payment of an amendment fee in an amount of $2,600,000 at the earlier of the maturity date of the loan or the date the loan is paid off.
In February 2025, we also entered into a Purchase Agreement (the “Purchase Agreement”) with the investors party thereto (the “Investors”). Pursuant to the Purchase Agreement, in consideration of the Eighth Amendment, we issued 113,170 shares of common stock (the “Eighth Amendment Premium Shares”). We also agreed that unless all Obligations (as defined in the Highbridge Loan Agreement) are repaid in full prior to July 1, 2025, we will issue 112,041 shares of common stock (the “Subsequent Eighth