Operating Expense. The following table summarizes our unaudited operating expenses for the three months ended September 30, 2024 and 2023, as well as the percentage of total revenue and the amount of change and percentage of change (dollars in thousands):
| | | | | | | | | | | | | | | | | |
| Three Months Ended September 30, | | | Amount | | Percentage | |
| 2024 | | | 2023 | | | Change | | Change | |
Sales and marketing | $ | 719 | | 31.4 | % | | $ | 1,791 | | 83.1 | % | | $ | (1,072) | | (59.9) | % |
General and administrative | | 2,082 | | 90.8 | % | | | 2,058 | | 95.5 | % | | | 24 | | 1.2 | % |
Research and development | | 399 | | 17.4 | % | | | 542 | | 25.2 | % | | | (143) | | (26.4) | % |
Impairment of long-lived assets | | — | | — | % | | | 777 | | 36.1 | % | | | (777) | | (100.0) | % |
Total operating expenses | $ | 3,200 | | 139.6 | % | | $ | 5,168 | | 239.9 | % | | $ | (1,968) | | (38.1) | % |
Sales and Marketing Expense. Sales and marketing expenses for the three months ended September 30, 2024, decreased by $1.1 million, or 59.9%, to $0.7 million, compared to $1.8 million for the same period in 2023. The decrease is primarily due to a decrease of $0.5 million in advertising and marketing expenses, including consulting and professional marketing services, as the Company has reevaluated its marketing approach and has moved to a targeted digital marketing campaign, resulting in a reduction of costs. Additionally, there was a decrease of $0.5 million in payroll-related expenditures, including commissions, stock compensation expense and travel, due to changes in sales personnel and a reduction in sales, and a reduction of $0.1 million in other expenses.
General and Administrative Expense. General and administrative expenses for the three months ended September 30, 2024, increased by $24 thousand, or 1.2%, to approximately $2.1 million, compared to $2.1 million for the same period in 2023. The increase is primarily due a $0.4 million increase in professional services primarily related to the merger and asset sale transaction that was entered into during July 2024, offset by a $0.2 million reduction in employee related expenses, $0.1 million in bad debt expense, and $0.1 million in other expenses.
Research and Development Expense. Research and development expenses for the three months ended September 30, 2024, decreased by $0.1 million, or 26.4% to $0.4 million, compared to the same period in the prior year. The primary reason for the decrease is due to a reduction in payroll, consulting and clinical trials, as the Company has paused all clinical work to preserve cash.
Impairment of Long-Lived Assets. Impairment of long-lived assets decreased by $0.8 million for the three months ended September 30, 2024, compared to the same period in the prior year. During the three months ended September 30, 2023, the Company impaired approximately $0.8 million, consisting of fixed assets and intangible assets. During the three months ended September 30, 2024, no impairment was recorded.
Nine months ended September 30, 2024 and September 30, 2023
Revenue. The following table summarizes our unaudited revenue by geographic location based on the location of customers for the nine months ended September 30, 2024 and 2023, as well as the percentage of each location to total revenue and the amount of change and percentage of change (dollars in thousands):
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| Nine Months Ended September 30, | | | Amount | | Percentage | |
| 2024 | | | 2023 | | | Change | | Change | |
United States | $ | 5,290 | | 85.3 | % | | $ | 5,473 | | 81.8 | % | | $ | (183) | | (3.3) | % |
Australia | | 316 | | 5.1 | % | | | 419 | | 6.3 | % | | | (103) | | (24.6) | % |
Europe | | 564 | | 9.1 | % | | | 756 | | 11.3 | % | | | (192) | | (25.4) | % |
Rest of world | | 31 | | 0.5 | % | | | 48 | | 0.7 | % | | | (17) | | (35.4) | % |
Total revenue | $ | 6,201 | | 100.0 | % | | $ | 6,696 | | 100.1 | % | | $ | (495) | | (7.4) | % |
Revenue totaled $6.2 million for the nine months ended September 30, 2024, which represents a contraction of 7.4%, or $0.5 million compared to the same period in 2023. This primarily resulted from a decrease in sales volume primarily due to GLP-1 pharmaceutical weight-loss alternatives.