David Miller
Analyst · Craig-Hallum
Thanks, Ronnie.
Our full results on Form 10-Q will be filed with the SEC on or before March 16.
We had a strong quarter, kicking off the second half of our fiscal year with record revenue of $9 million and near-record net income. Our revenue increased by $2.6 million or 40% compared to the year-ago period. Excluding stock-based comp and depreciation, we recognized a gain of approximately $900,000 compared to a gain of $91,000 in the year-ago period. Including stock-based comp and depreciations, we recognized a gain of $430,000 for the quarter compared to a loss of $370,000 in the year-ago period.
Focusing as we do on costs, excluding stock-based comp and depreciation, our gross margin for the third quarter was 52% compared to 47% for the same period last year, with cost of sales increasing by $900,000. The increase is mainly attributed to the revenue growth and continued expansion of studies and process.
R&D expense was approximately $1.4 million compared to $1.3 million in the year-ago period. We increased our R&D investment to continue growing our tumor bank, along with expanding the capabilities of our in vivo and ex vivo platforms. This investment allows us to design and provide following the tools to run increasingly complex studies.
Sales and marketing expense was $1.2 million compared to $826,000 in the year-ago period. The increase was mainly due to compensation expense in the form of salaries and commissions. We expanded our business development team to penetrate deeper into existing territories as well as opening up new geographies and product lines. Additionally, as discussed on our prior earnings call, we adjusted our methodology for a [ cooling permission ] by allocating these costs over the course of the year. Historically, commissions were heavily weighted into our fourth quarter. This accrual, combined with commissions earned on robust sales, contributed to the increase. Over the coming quarters, we intend to continue to grow our business development team to capture more market share as well as explore other strategic opportunities.
Our G&A expense was $1.2 million compared to $845,000 in the year-ago period. The increase is primarily due to higher salary expense, along with approximately $150,000 in bad debt write off. Let me be clear, bad debt expense in our business is minimal, and this is not expected to be a recurring quarterly item. In total, our cash-based expenses were $8.1 million for the quarter compared to $6.3 million in the same period last year, an increase of approximately $1.8 million, of which $900,000 within cost of sales as a result of revenue growth and $400,000 in sales and marketing.
Now turning to cash. At the end of the third quarter, we had $3.3 million of cash on the balance sheet. For the quarter, cash used in operations was approximately breakeven, mainly due to the normal variability in the timing and accounts receivable and payable. With our anticipated revenue growth and profitability, we reiterate our cash from operations will grow over the long term. Additionally, subsequent to the quarter end, we have added approximately $4 million, mostly the result of [ warrant exercises ], solidifying our balance sheet with a cash balance of $7 million and no debt.
Looking ahead to the remainder of fiscal year 2020, with the understanding there is a bit of global uncertainty, we anticipate maintaining our profitability, and we reiterate our year-over-year revenue guidance provided last quarter.
In summation, we had a record-breaking revenue quarter, and we're very confident in the long-term prospects of the company. We look forward to our next call, which, because it's our year-end, will be at the end of July. We'll now open the call to questions.